Were you flat-betting or spreading your bets? What were you betting? How many hands did you play?
It sounds very unlikely sure, but of all the thousands of gamblers in vegas at this moment, it is actually quite likely that one of them is going through what you just went through. So for you individually, it is quite rare for this to happen, but out of all the gamblers in vegas, it is not that uncommon. You just happened to be the poor guy that had the terrible run.
If you want to check, you can watch the dealer in question without even playing. It wont cost you anymore more money to investigate, just watch him deal and see how everyone does.