Answer:
I can be entertaining until you realize some pieces have been lost.
You see a boat filled with people. It has not sunk but when you look again you don't see a single person on the boat. Why?
If two's company and three's a crowd what are four and five?
I am a person who pretends to be someone else
Crooked as a rainbow and slick as a plate ten thousand horses can't pull me straight.
I flow from the Homerβs mouth when he sees doughnuts.