I don't have one with weed, but my piece was exposed once. My friends cousin who is not cool with smoking was giving us a ride somewhere where we had planned to smoke. We get there, he drives away, and I realize my bowl isn't in my pocket any more haha. So we freak out and call him telling him I left my cell phone in his car. Luckily he didn't turn around and look in the back seat or he would have seen it sitting there, I just grabbed it when he pulled up quick haha.