He just needs to fake a broken hand. Beat him down, fake broken hand, and make it a point to let her know you'd do anything, including breaking your hand, to make sure nobody disrespects her.
Make us proud.
“Anna, my strong, terrifying Anna.” -Cas
"You lack the testicular fortitude to study under me" -Elodin
“slow and drunk is no match for fast and scared shitless.”-Jacob