I absolutely relate. I'm irritable at both ends of the pole but in hypo/mania I lack the impulse control to keep my trap shut. I've been emotionally and once or twice physically abusive to my husband. He takes it for awhile but then explodes when I keep doing after he's already told me I'm doing and I need to chill out. What I have tried to do that works a little bit is take a deep breath so I can think before I say something nasty. If I need to I remove myself from the situation. If I can't (like road rage) I tap my hands quickly. That allows me to let out energy without being harmful. Looks dumb but who cares?