[Phil Masters]

My two characters in the campaigns John mentions have both ended up dropping a point into the skill in the course of play, as I recall, because sooner or later in that sort of game in that sort of period, one winds up facing the need or nudged toward the training.

Not sure how often I've rolled it, but it's one of those "spend the point to persuade the GM not to insist on nuisance rolls at default" sort of skills.