On-off switch and a question

I swear I have this little on-off switch in my brain. It quite annoyingly operates completely independently of the rest of my brain--apparently, I have no control over it whatsoever. Alpha does--though He's never trying to turn it off and sometimes it takes a ridiculous amount of effort for Him to turn it on. Lately, I have been...off. I think this is due in no small part to the sky--specifically its close proximity to my head and its new penchant for dropping boulders out of the blue.
Before people start suggesting breaking out the spoons and artillery lol, it has nothing to do with our "sharing" discussion (I don't share well with others. Maybe it's a side effect of being an only child lol).
The more stress, the more "off" my little switch turns.

Anyways, on-off switches and falling sky's aside, littlemonkey sent out a question the other day:

"How much physical damage is too much, for you? What are your limits on that? How much is too much? Where do you and yours draw the line? Bad bruising, welts, drawing blood, marks lasting a few days , or a few weeks, permanent scarring? What are your feelings on this topic?"

Hhmmm, I don't bruise easily, so anything that leaves a bruise has to be pretty rough. Occasionally Alpha teases me that He will just have to try harder next time. But I think He appreciates the marks that fade by morning or at least within a few days--He gets the satisfaction of seeing the fruits of His labor (translation: my pain and suffering), but no lasting concerns that it was a bit to much. Bruising is more a result of impact (I've seen some of those pictures littlemonkey, so I know you know all about it lol) and besides fingerprints on my skin for several days, impact activities don't factor in much for us.
While there is a nice assortment of knives in our toy box, bloodletting and scarring never come into play. Neither bloodletting or scarring are activities I would enjoy or am curious to experience. Though I wouldn't mind the lasting marks from such--they would just be a reminder to wear with pride. I doubt Alpha would be happy if He drew blood (which for my body equals scarring so the two activities would be one and the same for us). I think He feels that it would be excessive harm and it's His responsibility to draw the line right before that step. He doesn't find blood or the process of drawing it a turn-on, and I'm not really interested in being on the receiving end of such activities lol so there's no real appeal there.