My vet told me this. A man let his labrador out and when he let the dog back in he thought it had been sprayed, but no, the skunk was IN the dog's mouth. The skunk sprayed right in the man's living room! I told the vet I would burn the house and deal with the insurance later.
Hubby caught one in a live trap in the barn a couple of years ago it smelled like a chemical factory exploded in there.
I soak the dogs in tomato juice for 15 minutes then rub baking soda in, let that sit awhile, wash with Dawn diswashing liquid. All of this works pretty good, but far from perfect.