Tonight I have a joke I heard
(Jason has a conversation with his new neighbour Pete)
J: So what do you do?
P: I teach deducive logic.
P: Let me demonstrate. Do you have a dog?
P: From this I deduce that you have a family?
P: And a wife?
P: And if you have a wife, I deduce that you are heterosexual.
J: That's amazing!
(After this Jason visits his friend Chris)
J: I just found out this awesome field called deducive logic.
C: Say what?
J: Let me demonstrate. Do you have a dog?
J: Then you must be gay.