I like the shouldering idea. The picture in my mind is a suddenly blind and smouldering assistant who goes on welfare for facial reconstruction and dual hearing aids about a day after 170 grains of powder discharges and envelopes him in the crystanthemum of white-hot firey gas jets from the cylinder gap and ports. Meanwhile, the hapless cashier has to pay his own medical expenses, incurred for treatment of a sprained diaphram from laughing too hard in the aftermath of the hold-up, and for buttocks surgery after being the first person ever to literally laugh his a-double-dollarsigns off.