What really bugs me about Poker is not his bad calls ( and they are truely very bad) but his spin. Those little white and not so white lies say a lot about an individual.
I normally give slack to people making bad calls since the only way to get better is to make the call and adjust if they are wrong. But the ones that are stuck in a perma mode will need a major spanking in order to be shaken loose from their losing mindset.