A few weeks ago my buddy and I were out playing 18. It was a busy day with a lot of waiting. When we came up to #4 (par 3)the rowdy group of guys in front of us were teeing off. 2 out of the 4 hit nice shoots right on the green. Thats when my buddy pointed out the ball marks from 165 yards away. They looked like huge ant hills from the distance.

I commented that they will probably not even fix their marks. Sure enough they grabbed their balls out of the cup and walked right off. I cursed them to myself and teed off. (Nice shot within 6 feet ) My buddies shot had massive back spin and rolled right into the new ball mark. He cursed and we finished the hole.

At the next hole I confronted the group about the marks, they made the comment thats what the grounds crew gets paid for. I left it at that. I then fixed multiple marks from these guys the rest of the day.

At the end of the round on the way to the clubhouse I decide that I would not say anything verbally to them. Instead I ripped out a piece of paper out of my notebook and wrote them out a "Bill".
I handed it to the loud mouth of the group. He looked at it and said "What the %@# is this? Bill for repair?"

I said "Thats what the grounds crew gets paid for. Now go pay them."
And we left.