The following is an actual question given on a University of Washington chemistry mid-term:

"Is Неll exothermic (gives off heat) or endothermic (absorbs heat)? Support your answer with a proof."

Most of the students wrote proofs of their beliefs using Boyle’s Law (gas cools off when it expands and heats up when it is compressed) or some variant. One student, however, wrote the following:

First, we need to know how the mass of Неll is changing in time. So, we need to know the rate that souls are moving into Неll and the rate they are leaving. I think that we can safely assume that once a soul gets to Неll, it will not leave. Therefore, no souls are leaving. As for how many souls are entering Неll, let’s look at the different religions that exist in the world today. Some of these religions state that if you are not a member of their religion, you will go to Неll. Since there are more than one of these religions and since people do not belong to more than one religion, we can project that all people and all souls go to Неll. With birth and death rates as they are, we can expect the number of souls in Неll to increase exponentially. Now, we look at the rate of change of the volume in Неll because Boyle’s Law states that in order for the temperature and pressure in Неll to stay the same, the volume of Неll has to expand as souls are added. This gives two possibilities.

1) If Неll is expanding at a slower rate than the rate at which souls enter Неll, then the temperature and pressure in Неll will increase until all Неll breaks loose.

2) Of course, if Неll is expanding at a rate faster than the increase of souls in Неll, then the temperature and pressure will drop until Неll freezes over.

So which is it ? If we accept the postulate given to me by Ms. Therese Banyan during my Freshman year that "It will be a cold night in Неll before I sleep with you," and take into account the fact that I still have not succeeded in having sеxuаl relations with her, then (2) cannot be true, and thus I am sure that Неll is exothermic.

The student got the only A.
A woman and a man are involved in a car accident; it's a bad one. Both of their cars are totally demolished but amazingly neither of them are hurt. After they crawl out of their cars, the woman says, "So you're a man, that's interesting. I'm a woman. Wow, just look at our cars! There's nothing left, but fortunately we are unhurt. This must be a sign from God that we should meet and be friends and live together in peace for the rest of our days." Flattered, the man replied, "Oh yes, I agree with you completely!" "This must be a sign from God!" The woman continued, "And look at this, here's another miracle. My car is completely demolished but this bottle of wine didn't break. Surely God wants us to drink this wine and celebrate our good fortune." Then she hands the bottle to the man, The man nods his head in agreement, opens it and drinks half the bottle and then hands it back to the woman. The woman takes the bottle, immediately puts the cap back on, and hands it back to the man. The man asks, "Aren't you having any?" The woman replies, "No. I think I'll just wait for the police..."
One day a man and woman were in their bedroom making love. All of a sudden a bumble bee entered the bedroom window. As the lady parted her legs, the bee entered her vаginа. The woman started screaming, "Oh my god, help me, there's a bee in my vаginа!" The husband immediately took her to the local doctor and explained the situation. The doctor thought for a moment and said "Hmm, tricky situation. But I have a solution to the problem if young sir would permit." The husband being very concerned agreed that the doctor could use whatever method to get the bee out of his wife's vаginа. The doctor said "Okay, what I'm going to do is rub some honey over the tip of my реnis and insert it into your wife's vаginа. When I feel the bee getting closer to the tip of my реnis, I shall withdraw it and the bee should hopefully follow my реnis out of your wife's vаginа. The husband nodded and gave his approval. The lady said, "Yes, whatever, just get on with it." So the doctor, after covering the tip of his реnis with honey, entered the woman. After a few gentle strokes, the doctor said, "I don't think the bee has noticed the honey yet. Perhaps I should try further." The lady began to quiver with excitement, moaning aloud. The doctor, concentrating very hard, looked like he was enjoying himself. The husband became very annoyed and shouted, "Now wait a minute! What the hеll do you think you're doing?" The doctor, still concentrating, replied, "Change of plan. I'm gonna drown the ваsтаrd!"
GOD said, "Adam, I want you to do something for me."
"Gladly, Lord," replied Adam.
"What do you want me to do?"
"Go down into the valley."
"What's a valley?" asked Adam.
God explained to him, then said, Cross the river."
"What's a river?"
God explained it to him, and then continued, "Go over the hill".
"What's a hill?"
God explained to Adam what a hill was, then said, "On the other side of the hill, you will find a cave."
"What's a cave?"
After God explained, he said, "In the cave you will find a woman."
Adam asked, "What's a woman?"
So God explained that to him too. He continued, "I want you to reproduce."
"How do I do that?"
"Jeez," God muttered under his breath. He then sighed and explained the birds and the bees to Adam. He
liked that concept very much, so he went down into the valley, across the river, over the hill and into the
cave where he found a woman."
A little while later, Adam returned and asked God, "What's a headache?"