You're not? That's a shame. One less client on the books. [sorry irene :( that's more of an aside to himself though bless so moving on--]

In that case I'm afraid it'll probably come down to waiting for a knife in the back: you work out what the knife is, who threw it and whose back was target, you know who's got the problem and what that problem is. No knife, no problem! Bingo. [some people aren't keen on sitting around waiting for potential proverbial knifes though are they h m m] If you want something a bit more preemptive, ask questions and keep an eye out for lies. "I'm fine"'s a kicker.