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 redheaded man walks into a bar and sits next to another redheaded man. He orders a Guinness, and the 2nd redheaded man turns to him.
"I'm guessing from that accent you're from Dublin?" he asks, in an Irish brogue.
"Of course!" the 1st guy exclaims, "here, bartender, get this guy a Guinness, too."
Their exchange continues:
1st: "Lemme ask you, what street did you grow up on?"
2nd: "St. Catherine Street. And you?"
1st: "St. Catherine Street, same as you!"
2nd: "Here, bartender, get this guy a Jameson! What school did you go to?"
1st: "St. Jospeh's Boy's Academy."
2nd: "Son of a вiтсh, I went to St. Joe's too! Bartender, get this guy a Jameson!"
This continues, and as they find they had the same teachers and knew the same neighborhood kids, they proceed to get louder and drunker until a guy at the other end of the bar asks the bartender, "What's up with those two?"
The bartender shrugs and says, "It's the O'Shaughnessy twins, they're drunк again."
Little Johnny's dad was constantly bragging about him to everyone. He was always telling everyone he met how his little Johnny did this, little Johnny did that, and little Johnny was the best kid ever.
One day little Johnny's dad was outside leaning on the fence talking to his next door neighbor. As usual it was "little Johnny did this, little Johnny did that, little Johnny's the best kid ever."
Just then the school bus pulled up and little Johnny himself got off the bus. His dad was elated. He turned back to the neighbor and said, "There's my little Johnny now! Isn't he the best kid ever? I'll ask him how his day went." So when little Johnny walked by on his way into the house his dad said; 
"So little Johnny, how was school today?" "Oh school was great today dad! I had SЕX in school today!" Then little Johnny went on into the house. His dad turned to his neighbor and said ever so proudly, "That's my little Johnny, he had SЕX in school today! What a kid!"
Next day little Johnny's dad was back at the fence again talking to the next door neighbor as the bus pulled up again. As little Johnny was getting off the bus, his dad turned to the neighbor and said "There's my little Johnny, what a boy! Watch this, I'll ask him if he had SЕX in school again today!" As little Johnny walked by on his way into the house his dad called out to him "Hey little Johnny, did you have SЕX in school again today?" "Oh no dad, my вuтт's still sore from yesterday!"