Playing blackjack, alone, 1 hand, $75 a pop. The dealer looks like a newbie schoolkid who hasn't slept in 24 hours or something. Fumbling cards, fumbling chips, etc.
Error #1: We are playing so fast that after scooping up my bet, he immediately starts dealing the next hand before I had even placed a wager!
The hand: 14 vs dealer 5 and he goes oh shoot now what. Calls floor. Floor gives me the option to void the hand or place a wager. Now imagine if this hand was a BJ. ALL IN for table max yo! I spent the next 3 days wet-dreaming about what it would be like if I had a BJ that hand.
Error #2: Dealer Ace "insurance open", immediately fumbles the second card, which was a 10. Insurance taken.
The best ones are when they forget to ask you for your action on an obvious 19 or 20 and go to the next player. If it's an ace or something you could always double down