When we have to deploy the bad ones at work before throwing in the trash, we are required to tie them to a spare wheel/tire combo with the bag popping out the top to make sure they don't "jump" and cause any damage. We had an idiot (no longer there) who decided to put it upside down (airbag underneath) and see what it would do. That tire/wheel combo went above the height of the shop, 15ft, and bounced over the fence, into the dealership lot next door and damage a van. Needless to say, they pulled it out of his check and when he was done paying it off, he was done working there.