Does anybody else think this May 21st Judgment Day thing is ridiculous?

Ok first off, the Bible CLEARLY says, that no man will ever know when the world is ending, and yet guess what? A man thinks he knows when the World is ending! Haha, he even has a specific date and time!! Ok, God didnt make the clock, and days being 24 hours, so yes, God picked a specific day for World Annihilation and told one man that has already been wrong once about the same topic, yes, that makes PERFECT sense! No it doesn't. So basically everybody who believes this Harold Camping guy is sinning by believing a mere human, over God. This whole thing is ridiculous and stupid.