So a few days ago in my Bio class...
Teacher: You all notice things about each other. For example, when you walk down the hall you might see someone and think to yourself "wow, he's really tall." Does any one know why?
Class:
Teacher: No?
Class:
Teacher: It's because you're viewing these people as either a future boyfriend/ girlfriend or competition.
Class:
Teacher: This being said, none of you would be able to tell me if a specific giraffe was exceptionally tall. Why? Because none of you are attracted to giraffes.
Class: *Starts giggling*
Teacher: I can guarantee that none of you have ever walked into a zoo and thought to yourself "Dang, that is one fine looking zebra."
Class: *Dies*