I had rented a Grumman Tiger for a week to attend a course. Flew it from Toronto Island to Philadelphia Wings field. Course over, paid the fuel bill, checked the tanks to find them empty. The fuel bill was torn up, but the fuel truck had just broken down; so had to fly to North Philly to get gas. Once fueled and on my way back to base, FSS advised Toronto Island would be closed before ETA; so diverted to Toronto International with permission from customs. Phoned owner and took limo home.
Owner picked me up the next morning and I flew the plane back to Toronto Island.
With gliders you don't always make it all the way back. The pilot gets to organize the retrieve, pay for the beers at the clubhouse, and get the glider rigged.