A mate of mine dropped and chipped his mouthpiece minutes before a gig when we were about 18. I chipped a clarinet piece on the edge of a glass table when doing a transcription years ago - on lap and bringing up to check notes. Other than this, I’ve forgotten a sling - in other sax case - a few times. Guitar straps have sufficed very well, yet you no longer look particularly cool.It's interesting to see the different responses to a given situation. The tragedy of dropping a mouthpiece and it breaking inspires some to carry back ups in case of a repeat but inspires me to be very careful. In fact very very careful, when handling my gear. My babies.