Where Is the Coin Cup

My girlfriend and I went to Vegas. We had a blast going from casino to casino. They started to bring us free drinks at one. We had two, three, four, maybe five drinks. We left the casino, stumbling a bit. Hey! She said where is the coin cup? We had been sharing one. An argument ensued. We had left it in there. We stumbled back in. There were hundreds of coin cups. Ours was no longer at our slot machines. I looked around. Old men and women everywhere. Feeding quarters in, looking like monkeys. We argued about who was supposed to have kept the coin cup Luckily we reached our hotel okay and fell asleep In the morning we could not stop laughing about it.