[+ARUKARI-]

beforeDamage

public beforeDamage(this, id, attacker, Float:damage, damagebits)
{
  if(is_user_bot(this))
       return HAM_IGNORED;
    ....
}

onSpawn

public onSpawn(id)
{
    if(is_user_bot(id))
        return HAM_IGNORED;
    .....
}