The dealer and 6-8 partners at the old Frontier, the female dealer switched the shoe with a set up shoe so all partners at table would win 8 out of ten hands. She brought the stacked shoe to the table in her large purse, she kept under the table. They won 20-30 thousand. The house knew something was wrong but didn't figure it out till after chips were cashed. They later arrested employe and some of the partners. This scam, changed the rules, no purses at the table, and shoes attached to a chain, at the table! I was at casino a day or two later and it was the talk, at the bar.I think it was in the 70's or 80's.