It's Amish's character, so he can make the final call. It's only one point of fort damage caused by a smack to the face, so I do think a simple nosebleed is enough for that.

Bear in mind, you will take more points of fort damage in the future I'm sure, I dont want the benchmark set too high with the first point taken XD

Also, I'm a bit techy about having a roll to remove that damage point or reduce its healing time. Maybe once someone invests in first aid skill that can be a perk, but it's too early to be having that discussion.