I got maced and i rate it 9. Its not really painful, but its very irritating. Your eye burns and swells up, your breathing becomes difficult and rapid, and it sucks. My face was swollen when i got maced, and it took me a good 1 hour to have the pain go away. Tazer? No i haven't and i plan not to, but from my perspective view, its a 10. Lets just say its one big giant muscle spasm.