This is a pet peeve of mine as well. One time when I was dealing at Ocean’s 11 there was a guy who sat down and started asking to see almost everyone’s mucked hands. The game was super donkish and I’m not sure anyone even noticed or knew enough to be annoyed and so he just went on with it. But as soon as I got pushed I told the floor who then walked over to the table and said to the new dealer, in a loud voice, “(Dealer) let me know if anyone abuses the ‘see mucked hands’ rule.” That put a stop to it.