The day was last Saturday, June 24, 2017, the venue was the Bellagio poker room, the game 1/3, and the dealer was Austin. It wasn't a huge pot moneywise as I only had about $200 in front of me, but it will be one I'll never forget.
I was in the big blind with 9h9s, and called a $15 UTG raise together with 3 others.
The flop was 9c 9d Tc.
I flopped quads and it was checked around.
The turn was 6c, and being the first to act, I checked again, hoping someone caught a draw or better and would bet. It wasn't to be and it was checked around again.
When Austin placed the 7 of clubs on the river, I knew that he should have chosen a career in magic rather than dealing.
I bet $50, all folded to the button, who had me covered and who went all-in. Not being in the habit of folding quads, I called and was shown 8c8s for the straight flush. Even though Bellagio does not have a bad beat jackpot, thankfully this hand would not have qualified as both cards have to be used.
Summarizing, I was a 99.7% favorite on the flop, and this was the first time I've lost with quads. This is not the worst beat possible on the flop - 99 vs AA on a 995 flop is a 99.9% favorite against an ace on the turn and river - but I'm sure I'll eventually be dealt one of these as well once Austin has some more time to hone his skills.