Angry certainly appears to be the right word.
This is obviously going for the person rather than the policy, but still worrying nonetheless...
'McCain immediately turned to the woman and said between clenched teeth: 'DON'T TOUCH ME.' The woman started to explain...McCain interrupted her: 'DON'T TOUCH ME,' he repeated viciously. The woman again tried to explain. 'DO YOU KNOW WHO I AM? DO YOU KNOW WHO YOU'RE TALKING TO?' McCain continued, his voice rising and his hands now raised in the 'bring it on' position. He was red-faced. By this time all the action at the table had stopped. I was completely shocked."
McCain Exploded With Rage During Gambling Outing
I notice Biden has today been challenging McCain to look at Obama in the eye and say the things he has to say to him. I can see the tactics behind that.