I can't believe it happened to me but it did! my ball burst when I was doing chest flies and my arm (near my wrist) is broken Having surgery on Friday to fix it.
I am grateful that my injury isn't worse! My ball was probably over 7 years old and probably should have been replaced sooner.
I feel like i have to warn people that this can and does happen. I was using 20lb weights on a 65cm ball. I found the ball convenient compared to a bench because it took up so little space.
I will use a bench from now on! Be careful if you use a ball. Keep it well inflated and check it for wear and tear. Mine was "anti-burst" but it split along a seam and I went down fast even though technically it didnt "burst".
Sorry for typos, I am trying to type with one (non-dominant as luck would have it!) hand.
Really wanted to get the message out.