oh sure lots of times. I never make new friends at concerts unless I go alone. And since you're beholden to no one else's evening plans, whenever you feel like you've gotten enough show, you can jump stage when security is distracted and give the band a hugs until security picks you up and throws you out. It's a good way to beat the rush and be first to the parking lot too. Or you can make it like a game and keep trying to get back in. One time I got thrown out like that, went back to the front and just ran back in and hid until they found me. Then they stationed a guy in the front and I juked around him and hid again. Then they stationed 3 guys at the front and I was finally thwarted