it did happen to me, I was annoyed
I had been practicing for several hours when a couple of jackasses started playing on the next table. The kind that think they are slumming at a pool hall and are too loud, very foul mouthed, and it just has that ring to it that this is the only place they behave like that.
For several reasons my nice leather case is on a small table, has been since I arrived. One jerk put his wet water bottle against it. I moved it well away from my case, still on the table, and set it down with a very noticeable thump. A few minutes later the water bottle is back against my case. Once again I moved it, again with a substantial thump setting it down. A few minutes later, back against my case although there was over a foot more room on the table and my case was against the wall. I walked over, picked up the 3/4 full water and walked over to the garbage can. Slam dunk.
The jackass started whining that he would have moved the water. I told him that I moved the water twice, the third time was when it hit the garbage. A little later he bought more water. Putting it against my case was no longer a problem.
I hate jerks that come into pool halls with obnoxious behavior that they reserve for pool halls anyway, no tolerance when it affects me. It doesn't bother me nearly as much when it is someone whose normal speech is foul mouthed but these people who sound like grade schoolers who have just discovered a new curse word do annoy me. Late thirties, early forties, still haven't grown up enough to put on long pants.
Hu