Only once. Sadly at the time I was living on a second floor apartment so there was no way to crawl in the window. It was also about 8PM at night. This was pre-cell phone days so I had to knock on the neighbor'd door and use their phone to call maintenance and have them come let me in. The guy that let me in was cool. He said most of the lock out calls he gets are by drunks at 2am
