Nevermind.ehh. I do it occasionally, mostly when I'm very frustrated and feel the need to react, to do something that is real. This sounds weird but I somehow appreciate that I'm violating myself- destroying something.
Anyways, I was drunk and told my friend once and she said she did too. I felt very ashamed and embarrassed after that because she treats it as a badge of honour...she (admittedly) thinks it is cool and that is her "quirk" and i hate the fact that i'm technically in the same "social category" as a person who would treat it as a tool to manipulate others.
So. That was VERY coherent.