I accidentally tipped a waitress who was flirting with me almost 70 percent. My fiance (who was present) refuses to believe it was an accident.
Was it an accident?
I think so. My mind was somewhere else.
That is a lot to tip. Tipping is good, but in this instance it should not be because the waitress was flirting, especially  in front of your wife.
What do you mean?
Do you really have to ask? How would you feel if your girlfriend accidentally gave an extravagant tip to a room-service waiter in front of you and told you it was because she was distracted?