Fish and ships.
or
Because he want to wake up some day as America's First Dictator.
or
Because an undocumented worker has been living on his head for the past 2 decades!
or
A cartoon.
or
Cause your the only one Hair.
or
Billllyuns and billllyuns. Light bulbs are part of the interstellar "goo" that pervades our universe; they are star stuff.
or