Because they record everything. (I swear I made it up n I'm brown too)
Because he's a two timer.
Q: Why don't women wear watches? A: Because there is a clock on the stove.
A: Put your head through a window and the pane will just disappear!
It was a long road, but I ended up coming out a head.
X-post) http://www.reddit.com/r/AskHistorians/comments/2krnv8/whatistheoldestjokewehaveonrecord/
A cam-el. Get it, because a camera records things and a camel is a animal.
Because he kisses his mother with that mouth
A hippopottymouth
Beef Wellington