public OnPlayerWeaponShot( playerid, weaponid, hittype, hitid, Float:fX, Float:fY, Float:fZ )
{
    if( hittype == BULLET_HIT_TYPE_PLAYER ) // Bullet Crashing uses just this hittype
    {
        if( !( -20.0 <= fX <= 20.0 ) || !( -20.0 <= fY <= 20.0 ) || !( -20.0 <= fZ <= 20.0 ) ) // a valid offset, it's impossible that a offset bigger than 20 is legit (less than 0 is impossible, but still, let's check for it, just for the future)
        {
            /*
                If you want, here you can kick the cheater
            */
            return 0; // let's desynchronize that bullet, so players won't crash
        }
    }
    return 1;
}