A woman comes home and says to her husband, "You know those headaches I've been having all these years? Well, they're gone."

He says, "No more headaches? What happened?"

She says, "I went to a hypnotist, and he told me to stand in front of a mirror, stare at myself, and repeat, 'I don't have a headache, I don't have a headache, I don't have a headache,' and it worked. The headaches are all gone. You know, you haven't exactly been a ball of fire in the bedroom lately, either. Why don't you go see the hypnotist?"

He goes, and when he gets home, he rips off his clothes, carries his wife into the bedroom, throws her on the bed, and says, "Don't move, I'll be right back."

He goes into the bathroom, comes back a few minutes later, jumps into bed, and they have the best sex they ever had.

She says, "Wow, that was wonderful."

He says, "Don't move, I'll be right back."

He goes back into the bathroom, and when he comes back, round two is even better than the first. She can't believe it.

He says, "Don't move, I'll be right back," and he goes back into the bathroom.

This time she follows him, and when she peeks in the door, he's staring into the mirror saying, "She's not my wife, she's not my wife, she's not my wife...."