The above is a picture of my shepherd Sheba (and our two cats Junior and Eggie with her). She looks beautiful and calm here.
Not so when there's thunder. She can hear it a half hour before I can and turns into a 75lb shaking ball of nerves who's determined to sit in my lap. It's really not pretty.
Not thinking, I bought a relaxation CD to fall asleep by a few months ago — it's "electrifying thunderstorms" (I obviously love storms).