Typically I plan it as well, or at the least I know its a high possibility that I'll engage in it.

I truly believe I sh out of anxiety/frustration (T finds this "interesting") so if I'm highly stressed out, I think "I can sh and it'll make me feel better" and i'll know that at some point at home i need to take a few minutes out to myself so that I can do it. I'll even go as far as to make sure the kids (my little cousins) are fed, my mom doesn't need me for anything and everyone's settled and content so that I won't be disturbed.