I don't know why it does, but this video makes me laugh.  Okay, I do know why.  Part of the amusement comes at the end when the guy's thumb is bitten.

A frog is placed in front of a cell phone displaying random bugs, frog tries to eat them unsuccessfully and grows frustrated (assuming a frog can have that emotion).

Enjoy.  And try not to laugh at the end (ending may not be totally safe for work!).