Skunk joke

A couple were driving through Mexico towards the American boarder when
they ran over a skunk, badly injuring the animal.
"What are we going to do?" says the woman.
"We'll have to take it to the vets" he says, "but there's no way that
we'll be allowed to cross the boarder with an animal."
"I know, lets hide it in the car." says the woman, but after much
searching they were unable to find a suitable place.
"I've thought of a place they'll never think of looking," says the
woman, "I'll put it down my knickers."
"But what about the smell?" he says.
"That's OK, I'll put some cotton wool up its nose."