Because the sea weed
or
You go on ahead. I'll hang around for a while.
or
His powder puff is on the wrong end.
or
A garbage truck.
or
They both have trunks
or
None, but it takes at least one to sit and pray for the old one to go back on.
or
Five: One to change the bulb and four to pull the ladder out from under him/her.
or