You would make a shit defence lawyer. It wasn't mankind that drowned a whole planet for being naughty but that deity of yours in the dock. To to conclude, can we stop blaming man for the actions of a God ? He should be in jail mate and one hell of a spiteful vengeful mo-fo you could wish to meet. God fearing indeed !
Our belief is different. It wasn't the whole planet. Only those who rejected Noah(as) were drowned.