I understand the attitude, but cutting the straps off someone's skid-lid is not cool.
CAMS used to do that to helmets that were in big crashes, but then it was pointed out that they were vandalising someone else's property. Then they realised they were a bunch of petty little twats, and pulled their heads in (yeah, I made up the last bit, but the rest is true).
(Late edit to undo the auto-correct stooge factor).