I was working in ICU of a 1200-bed hospital. One of my ventilator patients was a 16yo kid who had landed in our ICU after, in one of his more brilliant moments, he had swallowed more than 20 rocks of cocaine while running from the police. After doing that, it wasn't much of a chase really. He was very angry to say the least & he vented his hostility on everyone who was trying to care for him. He was very combative & was an exceptional pain in the a**. Usually I'm quite patient & tolerant; but one day he crossed that line for the last time. I've never done this before or since, but being the redhead that I am, well I'd had enough. I took my hemostats & clamped them down on his breathing tube, thus cutting off his air. (I knew how much time we had before his next breath.) I explained to him what I'd done (which made him panic), then read him the riot act. I told him no one would ever come in his room again if he didn't stop this sh*t. I asked him if he understood me. He nodded yes. I told him if he continued to act the same way, I'd be back. I asked if he understood & he nodded yes. So I removed the hemostats. He didn't cause even 1 problem after that.