Last time it happened was in a local tourney situation. Guy in question tried to counter-argue that I was trying to slow-play. Without being able to quote the rule to the TO, that devolves into a "my word vs. his" situation. I should have the stronger argument, but the only reason the TO sided with me is somebody else got caught cheating earlier in the day. And before you say "find a better place to play", nearest other game store where 40k players regularly show is an hour and a half away. I'll have the cash to finish off my Codex collection well before I'll have gas money to travel to the other place regularly. Again, I'm not saying I'm on the right for pirating the books, just giving an example of how I've gotten stuck playing a less-than-honest person without an easy recourse.