I went to see a clown act once and they were awful.
As they were coming on stage, one of their mobile phones went off. So he just stopped and stood there answering it.
The other clowns were really confused at first, but then one of them got so angry, he picked up a bucket of water and threw it over him. Just terrible.
Turned out the bucket only had confetti in it. Awful they were...
(courtesy of Sean Lock)