This is an old glitch but I haven't seen it on the mega glitch thread (its on there now), many people know this but some people don't.
Working as of 9-13-15!
- Step 1: Find a store / gas station.
- Step 2: Aim your gun at the clerk and walk as close to register as possible. (Where the clerk is).
- Step 3: Wait for the clerk to pull the bag out of his pocket, as soon as the bag is half way out pistol whip him and immediately click right on the D-Pad.