Yep, I had 2 balls destroyed in an 11 day period in the local house back about 8 years ago....interestingly enough, both balls were damaged in practice, and I was on the same pair of lanes both times (but on the opposite lane). In the first one, a Power Torq hit the rack, and came back with a huge screw gash dead centered in my track....the gash was too large to repair, so the house replaced the ball. Then, 11 days later, my ProHook Extreme went to the pit and never came back. I called the control desk, the mechanic went to the back, and a few minutes later the mechanic came back up front holding the ProHook in his hand. The ProHook Extreme had gotten wedged in the ball door, right against the kicker wheel, and the kicker wheel burned a deep and wide groove dead center in my ball track (the groove was 2 inches long, 3/4" wide, and 3/4" deep). I wound up having to get that ball replaced as well.
Isn't it amazing that almost any time you get a significant damage incident on a ball, it always falls into a vulnerable area that makes the ball useless?