First neighbor: Hi there, new neighbor, it's a nice day to be moving.
New neighbor: Sure is.
First neighbor: Tell me, what do you do for a living?
New neighbor: I am a professor at the university. I teach deductive reasoning.
First neighbor: Deductive reasoning. What's that?
New neighbor: Let me give you an example. I see you have a doghouse out back. By that I deduce that you have a dog.
First neighbor: That's right.
New neighbor: The fact that you have a dog leasds me to deduce that you have a family.
First neighbor: Right again.
New neighbor: Since you have family, I deduce that you're heterosexual.
New neighbor: And that is deductive reasoning.
First neighbor: Cool!
Later that day...
First neighbor: I was talking to that new guy who moved in next door. He has an interesting job.
Third neighbor: What does he do?
First neighbor: He's a professor of deductive reasoning at the university.
Third neighbor: Deductive reasoning. What's that?
First neighbor: Let me give you an example. Do you have a doghouse?
Third neighbor: No.
First neighbor: Fag!
Bonus:
A guy sat down at a bar, ordered a drink, and put his head in his hands.
"What's up?" asked the bartender.
"I'm in deep shit," said the guy. "I just got caught screwing my neighbor."
"Who caught you?" asked the bartender. "Your wife?"
"No," replied the guy. "His wife."