Consider it an all-the-time occurrence. If we see you cutting yourself, generally it has some pretty messed up meanings from where we are. Mental disorder, primarily.

[So maybe if he explained it to Max, he might be more understanding? Though, on that same token, Max had just tried to explain his reasoning to him and he wasn't keen on changing his mind]

So what's the part you've got to regret about, since you keep cutting yourself for your blood boosting?