How long do I withhold tips? Dealer mistake costs me $1800. (long)

[RR]

[ QUOTE ]
I play around 30 hours per week, and probably win 2 pots an hour. That works out to 30 weeks of not tipping. Maybe 25 since sometimes I tip more than a dollar. As a professional poker player, EVERY mistake I make costs me money.

[/ QUOTE ]

You play this much and a very common mistake gets you upset? By chance do you have a second job and not keep actual records of if you win or lose?