I just laughed at Harold campings May 21 prediction?

And now I fell bad not towards him but I fell like I laughed at god. Wich wasn't my attention I just don't think he and his minions have the right to predict judgement day when his son jesus himself doesn't know or any angle. And he said there is no given hour no give day. Right? So why or how on earth would this guy know? Correct meif I'm wrong or if you want. And if you belive his prediction what ever but I'm not sorry for what I believe I do belive in judgement day but, I'm not buying into this guy. But I do fell bad I laugh what do I do?