When people don't inhale their smoke. I knew this kid that would always puff out his cheecks when he would smoke, and when we told him to inhale he'd just move his head back literally. If you are a beginner and don't know how to properly inhale, and you're willing to learn, then I might help you out, but if you deny it and yell at me for not knowing how to properly smoke then don't smoke with me anymore. It just wastes another hit that I can have. I also hate leeches, where you can't take out a sack or anything without it being jumped on especially when they have nothing to offer and don't appreciate shit.