I always wonder what the people screaming "POLICE BRUTALITY! POLICE BRUTALITY!" would rather have the police do instead. Left hook to the jaw? Shoot him in the butt? Unless you have some very unlikely disease or condition, tasing is harmless in the long run.
I would also like the jury to consider that if you can yell "OW! OW! OW!" as you are being tased then they didn't stick you very good in the first place. Tasing is no joke; it's used for a reason, and that reason is that it puts you down fast.
In short, if I were a dumbass kid going psychotic in front of a politician with five cops standing behind me, I'd much rather get the taser than the butt of a pistol.