Absolutely, real life never matches the lab tests. I had a similar thing happen with a waterproof phone case (supposedly rated for 10 meters). Took it in the shower for music, and moisture got inside instantly. The seal just couldn't handle the steam and movement, I guess. It's like they test in perfect still water, but we use stuff in messy, changing conditions. (Kinda makes you question all those ratings, right?) So much for trusting the specs on the box.