oh yeah, I haven't worked at a place that uses olive oil in a deep fryer either- I just worked at a couple of places with deep fryers and they were a pain in the ass, and most of the time, the stuff that came out of it was fair-to-middling. I know an Italian place that does small fried and baked foods (stromboli, arancini, croquettes etc) that I'm sure does all their frying in OO of some kind and it absolutely fucking slaps; but I'm pretty sure all their stuff is extremely small-batch too considering they usually sell out their food by like 12:30 every day.