Being a Programmer is a lot like being a member of the worlds oldest profession because...

1.) They both begin with 'P'.
2.) You don't want to admit your involvement to certain people.
3.) You start by experimenting, then doing it for fun, then for a few friends, then as a special favor, and finally for money. http://trig.com/jord/blog/2007/7/13/post/24991
4.) You have to always worry about what's getting mounted, how much forking is going on, knowing that some Wang's are never any good, and you try not to create too many children.
5.) Really bad dental and vision plans.