Yea I usually tap on the glass of their vivs first and then come back a couple minutes later, slowely lift the hides and give them a minute to relax. I usually don't have any objections to being pick up, but if i do catch them off guard and they ball up slightely the usually come right out of it when they realize i'm not going to eat them. Then they put on their little exploritory faces and off they go slithering around.