When a deputy can't control a 72 year old woman without resorting to his Tazer, that deputy needs to find a new job. What was dude afraid of - breaking a nail? Granny hitting him with her purse? Maybe he could get a job as a towel boy, or something in ticket sales. Anything other than behind the wheel of a cop car and the trigger of a gun.
Don't they train these officers anymore? Or is the need for police officers so much larger than the available pool of candidates that they have to hire just about anybody, even those incapable of learning basic human relations skills like how to defuse a situation without resorting to violence?