What to do

James left the mall, dizzily day dreaming about how strange his life was. In under a week he had come into possession of two magic items and he was was currently in Lisa's body. The strangeness over it was almost over powering. He walked around the parking lot in a stupor liking for his car, when he suddenly remember that he should be looking for Lisa's car. Finding it, he got in and noticed the Victoria's secrets bag in the passenger's seat.
"Maybe I should go in and test the ring on the Sally the Sales girl."
James thought about it for a minute, but looked at the time and realized that "Lisa" was probably due home by now so he decided he had better get "her" home.
James drove home and when he activated the garage door opener, he saw that Jack's car was already in the garage. He sighed in resolution that he would now have to pretend to be Lisa for the next 12 hours, until he could sneak back home, then he and Lisa could use the medallion to turn back to normal. James didn't know what to expect and the thought having to go in the house and pretend to be Lisa, Jack's wife, was more than a little unnerving.
He looked over at Lisa's purse and thought about the ring.
"All I have to do is think of Lisa, give the ring a 5 to 10 hour time limit and put it on. The next thing I know it will be morning. Lisa and Jack aren't having sex at the moment so I don't have to worry about anything happening like that happening...maybe I should just do it." James thought as he looked at the purse. "What's the worst that could happen?"