At best , a seasoned pro was negligent, at worst , he cheated. Marking a ball when the rain comes is not rocket science. I think the fact that his fellow pros are riding him so hard shows that they are determined to protect the game's integrity , and that he is not universally liked on the tour. People may respect his ability, but not his approach. While many Europeans get upset at his treatment by USA fans, it does not mean they like him either.