Not for me so far, but kids in the area of the speakers is the main reason I opted out of the M82 in favor of the M80s. I could just picture somebody bumping into the speaker and the M22 falling on top of one of them.
The first time I left the grilles off the M22s my oldest son, when he was 2, poked the aluminum part of the driver with a pointy object and it now has a very small ding in it. Luckily it didn't hurt the sound quality. Ever since I have drilled it into them that they are not part of their toys and are not to be touched; even their friends have had the riot act said to them just in case.
