@idea from Jesse
I dunno if this is possible or already available, but I was thinkin about amputatio. Like if someone was to get shot in the arm or leg, and if it was severe, we could amputate the appendage and then from then on they wouldn't have that appendage. They couldn't hold two items, if it was there hand or arm, or they'd have to buy a wheelchair, crutches, or even artificial apendage if it was there leg. It was just a thought, i dunno.