your spamming insanity potions before the fights right? I can't think of anything else, I'll see if I can find a way to trigger it and post what I find for ya.
Yeah, I have sanity at the lowest I can possibly get it from insanity potions before fight. Thanks, I appreciate it!
I´ve failed to trigger this as well =/. Currently trying at 16 sanity: first I make him horny and when he grapples me I submit.