If Harold Camping is wrong AGAIN...?

Should we seize all his assets and lock him up for the rest of his life in a mental hospital? This is the same person who predicted the end of the world in 1994. I think he is doing this for attention and for money. I see some of his followers and it makes me VERY angry that there are fools out there who believe his nonsense and they are absolutely certain of it - they couldn't possibly be wrong, and they are. So do we lock up these phony prophets for the good of society so they can't scare the sheep anymore?