A farmer ordered a high-tech milking machine. It happened that the equipment arrived when his wife was away. So he decided to test it on himself first.
He inserted his реnis into the equipment, turned the switch on, and voila, everything else was automatic! He really had a good time as the equipment provided him with as much pleasure as his wife did. However, when the fun was over, he found that he could not take the instrument off. He read the manual, but did not find any useful information.
He tried every button on the instrument - some made the equipment squeeze, shake, or suск harder or less - but still he had no success getting out of it. Panicking, he just barely reached the phone and called the supplier's customer service hotline.
The farmer:
"Hello, I just bought a milking machine from your company. It worked fantastic. But how can I take it off from the соw's udder?"
Customer Service:
"Don't worry. The machine was programmed to release automatically after collecting about 2 gallons of milk."

Costello:
Hey, Abbott! Abbot: Yes, Lou? Costello: I just got my first computer. Abbot: That's great Lou. What did you get? Costello: A Pentium II-266, with 40 Megs of RAM, a 2.1 Gig hard drive, and a 24X CD-ROM. Abbot: That's terrific, Lou. Costello: But I don't know what any of it means!! Abbot: You will in time. Costello: That's exactly why I am here to see you. Abbot: Oh? Costello: I heard that you are a real computer expert. Abbot: Well, I don't know- Costello: Yes-sir-ee. You know your stuff. And you're going to train me. Abbot: Really? Costello: Uh huh. And I am here for my first lesson. Abbot: O.K. Lou. What do want to know? Costello: I am having no problem turning it on, but I heard that you should be very careful how you turn it off. Abbot: That's true. Costello: So, here I am working on my new computer and I want to turn it off. What do I do? Abbot: Well, first you press the Start button, and then- Costello: No, I told you, I want to turn it off. Abbot: I know, you press the Start button- Costello: Wait a second. I want to turn it off. Off. I know how to start it. So tell me what to do. Abbot: I did. Costello: When? Abbot: When I told you to press the Start button. Costello: Why should I press the Start button? Abbot: To shut off the computer. Costello: I press Start to stop. Abbot: Well Start doesn't actually stop the computer. Costello: I knew it! So what do I press. Abbot: Start Costello: Start what? Abbot: Start button. Costello: Start button to do what? Abbot: Shut down. Costello: You don't have to get rude! Abbot: No, no, no! That's not what I meant. Costello: Then say what you mean. Abbot: To shut down the computer, press- Costello: Don't say, "Start!" Abbot: Then what do you want me to say? Costello: Look, if I want to turn off the computer, I am willing to press the Stop button, the End button and Cease and Desist button, but no one in their right mind presses the Start to Stop. Abbot: But that's what you do. Costello: And you probably Go at Stop signs, and Stop at green lights. Abbot: Don't be ridiculous. Costello: I am being ridiculous? Well. I think it's about time we started this conversation. Abbot: What are you talking about? Costello: I am starting this conversation right now. Good-bye.