Re: "Uh ... you can *do* that?"
Setup: One party member has Mind Link, only if in physical contact. The GM likes splitting the party now&then, the players hate it. My character, thanks to a Psych Lim, has died of the stupids, so I get to make a new character.
I give her a low power Mind Scan, "Only Persons She's Had Mental Contact With," Instant (and No Mental Awareness and a few other Lims) The GM approves, knowing that she'll get the mentalist to Mind Link everyone, and now my character can find the other members (but not over too much of a range). This makes the players happy ("We can find each other!") and the GM happy ("Well, mostly...").
Until we tangle with a villain with very powerful Mental Illusions. Who we interrupt in a robbery. The villain gets away, we recover. Then my character goes, "I know how to find him!" And tries her Mind Scan. GM says "Nope, you haven't been in a Mind Link with him". I say, "But doesn't the Lim say 'Only Persons She's Had Mental Contact With'? Mental Illusions is 'Mental Contact', isn't it?" (NOTE: I'm very polite about this, I'm not arguing a GM call, I just bring this to his attention.)
GM thinks, and agrees, the Lim doesn't say what kind of Mental Contact. So she starts tracking the guy. Got to admire the GM; finding the guy was supposed to be the whole story arc, my character short-circuited it, and he winged it so well we didn't know he was.