I do it sometimes in sted of self-injury. seeing a scratch on a disk or a break in a cup makes me smile
trouble is it only lasts for a few minits.. later when I realise it's broken and not how it used to be, I beat myself up about it (not just because of what I've done, the fact I need to buy a new one)
and of course: I'm not made of money either so money gets tight breaking all these things
and does it really work?. I just end up returning to do stuff on my body anyway. not really sure why breaking things is so appealing if later i'm just going to have to replace it..