Lets say you lived in a gravitational experimental room

I interpreted this as "smaller things drop faster than larger ones", which would mean that somehow, acceleration due to gravity is not constant as it is in the real world. Actually, Random_Overlord's system would make more sense if the force applied is constant, because otherwise bullets cannot drop faster than people if they have less mass.

He was just saying ANYTHING dropped on your foot would hurt like a bullet shooting you in the foot.