I went to Harrah's Joliet(Chicago) last fall and was surprised to see that they use completely dark and closed containers for the shoes and the discard trays so you can't see how many cards are left to be dealt or even how many cards have been dealt! I went there last month and it's the same. I was told they starting doing this after losing a substantial amount of money to a team. If teams get greedy or blow their cover, it really ruins it for the rest of us!