I try to keep my mits out as much as possible but there are times when that's just not feasible. My current tank is quite deep so I make sure to remove antiperspirants from my underarms. The stuff is poison. I have long gloves that I use when I'll be in for extended periods. Now and then, when something gets knocked about, I know it'll be a quick fix after a good rinse without any soap. I have a large palythoa colony and a couple of venomous fish, but haven't been stung ever - what Murphy's law says "anything that can happen, will happen eventually" should be kept in mind when messing around in our mini reefs. My doctor almost always asks me for aquarium updates, so I show him photos and videos. He is always in awe of marine life (he's from South Africa), however, he never forgets to say "be careful in there with your hands and arms. I've seen what some marine venoms palytoxins can do to people and it's not nice".