Paint the Wall

To show her husband that despite what everyone says, blondes really are smart.
While her husband is at work, she decides that she is going to paint the living room in their house. So the next day as soon as he leaves, she gets down to the task at hand.

Her husband arrives home after work and smells the distinctive smell of paint. He walks into the living room and finds his wife lying on the floor in a pool of sweat. He notices that she is wearing a parka and a mink. He asks her what she is doing.
She replies that she wanted to prove to him that not all blonde women are dumb and she wanted to do it by painting the room.

He says that he was impressed at the good job she had done, but what's with her wearing the two coats?
She replies that she was reading the directions on the paint can and they said, ''FOR BEST RESULTS, PUT ON TWO COATS!''