"I don't need all of you" you explain once the genie has transported you to Vegas "just your foot."
"Hold on a minute, Bub!" replies the genie in protest "My feet are kinda attached, you know?"
"Yes, I do know. That's why the rest of you is going in here!" you say, holding up a small empty perfume bottle.
"WHAT??"
"You're going to squeeze into here, leaving one of your feet outside. Then I carry you around like a lucky charm, rubbing your foot before I gamble."
"Forget it, buddy." says the genie firmly "I'm not going to be crammed inside some broad's perfume bottle! That stuff makes me sneeze, and besides my feet are rather ticklish!"
"In case you've forgotten, I'm your master!" you say even more firmly "Now, inside!"
With a heavy sigh, the Genie takes the bottle, puts it on the ground and starts squeezing his bulk in, toe first. He gets stuck a few times and you have to help him, but finally he gets all of himself in apart from his large foot which he sticks out.
"Right." you say, picking up the foot "Which casino do we hit first?"