[Sir_Brock]

When shot, being sprayed, if a car hits you: you are not able to move, yet if you jam the movement keys, jump and sprint etc, you will glitch around on the spot.

I don't know if it is possible, but based on if these types of animations are occurring, SA-MP's client should choose not to relay the keys being pressed.

Just food for thought, and I apologize if this has been suggested already.