My brother and I went to see Lou Reed at Ovens in 1989, we went over there in the afternoon hoping to see and maybe talk to Lou before the show. No such luck, but we were able to ramble around the place, including the backstage area and halls behind the stage (think Spinal Tap in that one scene where they keep trying and failing to find their way to the stage).
At some point I saw a rack of work shirts with patches on them that had Ovens Auditorium on one breast and the worker's name on the other. I grabbed one with the intent of donning it after the show and going backstage posing as an Ovens staff member. It worked and I got backstage with no hassles but then a worker came up to me wearing the same shirt. Busted! He wasn't pissed or anything and I told him why I had done it and gave him $20 for the shirt (even though it wasn't really his to sell, but he could've called security I guess) and then mingled backstage with the band. I still have that shirt...