Guy sits down at the table, buys in for 500 (which is a lot for this place), Gives the Pit his Players Card, and announces very loud he has ever played Blackjack before.
Then on the first hand splits 8s vs a 10.
The count went positive and he bets 2 units, 3 units 5 units then back down to 1 unit.
He was drawing attention and I don't even think he noticed so I packed and went to another table.
A pit guy came over and spoke to him and he left.
I did not hear what was said but I think I witnessed a backoff.
I think I can list the mistakes he made.
Just an interesting story.