Both are afriad when voices get raised.

Sierra is afraid of plastic bags, the broom, and the riding lawn mower. She hides down the basement.

Buddy is afraid when people making quick movements, thunder, and anything and everything my husband does
He either hides in his crate down the basement, or he jumps on top of me (ouch... having 90 lbs of dog land on top of you when you're sleeping... that hurts!!!)