Fall on the floor and pretend to be dead
You drop to the floor, nearly giving yourself a concussion because your head slammed on the floor from dropping so convincingly. You briefly consider giving a dying soliloquy but then decide that doing so might seem a bit suspicious. Yes, silence is probably the best tack to take when pretending to be dead. Before long, you sense someone prodding you with their forefinger or perhaps an original-flavor Slim Jim. Moments later, you are sprayed with a CO2 fire extinguisher and told to "get up, you faker." Somewhat sheepishly, you get up.