I think it depends a little bit on how they do it. If they sit down and nonchalantly pull their glove off and scratch their hand, I doubt I'd see it. If thye get all mad and make a scene of ripping off their glove and packing it back up in their case, kinda bad from. I used to wear a glove because I had really bad eczema on my bridge hand. I had to pull it down and scratch when I left the table or I'd go nuts. I tried to be discreet about it, mostly because it was kinda embarrassed about how tore up my hand looked at the time. I don't think I ever sharked anyone. If I wanted to do that, I'd roll up my shirt and pick lint out of my belly button. Good trick to know.