One's a spineless, poisonous blob. The other is a form of sea life.
or
To get to the baaaaarber shop
or
Billllyuns and billllyuns. Light bulbs are part of the interstellar "goo" that pervades our universe; they are star stuff.
or
One in 3,000,000 has a chance of becoming a human being.
or
Because the chicken was on vacation.
or