I get that, although I didn't have as strong a reaction as you.

OTOH, since I've long since learned to stop making even a token attempt to be sympathetic to the characters in the episode Moffat writes, I feel free to express admiration for how powerful and visceral that scene was in its awfulness. Like, if they were completely different characters, it'd have been totally amazing. Moffat's writing generally doesn't lend itself much to raw brutal emotion, but that scene did it really well. Really great acting too.