4) When you discover the casino is cheating.
Recently I had a very bad experience on a hand shuffled game. It is 6D game. The penetration is great, you got played 5.4D to 5.7D. out of 6D But the odd thing is that I was losing and no one won in my 3 hour session. The TC never exceeds +1.5 in my playing time. So I basically played table minimal in the entire 3 hours. Normally I will end the session when I show my max bet. Since the event never came, I stayed much longer for the session.
Many of you know I side count ace and 8/9 besides my main Zen count. This is what I discovered the casino is cheating and left the table.
All evening, there is the surplus of mid-card count (8 and 9) on almost every shoe as shoe progresses. Last shoe I played dealer cut only 0.3 deck out of the 6 decks because there are only two players left at the table, so he cut deeper than usual. Then more and more people join, it became a full table. I actually expect the dealer would run out of the cards and reshuffled the whole six deck just to finish the last round. But luckily when the red card came out and the last round ended, there are six cards left. He was joking he does not need to shuffle as it happened before. But my mid card count was 32 at that point. There are 48 mid cards (8 and 9) in the six deck shoes. Even all the six unseen cards are 8 or 9. There are still a few mid card missing. No wonder when I hit 12 v 2 or 12 v 3 on negative count, I never caught a 8 or 9 that everning. I think the casino replaces some 8 and 9 cards with face cards, so count will appear negative more frequently and counters cannot raise their bets. Also this makes index plays inaccurate.