I didn't realize:

Late at night this guy enters the dhaba and demands a glass of water.  The guy drinks it in one gulp and asked for a second glass. Six glasses later he has recovered enough to speak.  "Thank God," he croaks. "That's hell of a thirst you've got," says the Dhaba owner.
The guy said, "Any man would be as bad if he'd had sex with the woman in my car.  She's insatiable.  She wants me to go right back out there and do it all again, but I couldn't." "Where's your car?" the Dhaba owner asked. "Just a little away at the roadside," the guy gasped.
"May I ask for a favor," said the Dhaba owner, "watch my Dhaba for me while, I nip out and take your place in the car." "Sure, be my guest," the guy says. So the Dhaba owner goes outside and gets in the car.  It's totally dark, so the woman didn't realize he's a different man.  And they get right down to it, humping away.
Five minutes later there's a knock on the window.  It's a cop, and he shines his flashlight on the naked couple. "What's going on here?" he asked. "It's all right, officer," explained the Dhaba owner,  "She's my wife." The officer replied apologetically, "Oh, sorry, I didn't realize."
Look at the woman the landlord said, "Neither did I, till you switched on that damned light."