In one of the most recent examples, Madonna reportedly chastised a fan for sitting during her concert in Los Angeles this month, saying, "What are you doing sitting down over there?" Walking forward and apparently realizing the person was in a wheelchair, Madonna said, "Oh, okay. Politically incorrect. Sorry about that. I'm glad you’re here."
According to a fan, "There’s a part where during the show she asks everyone to stand up. It’s not about who’s sitting/standing during the entire show. Just 1 section she asks for participation. And this time she embarrassed herself."
You can tell by the easily bruised egos.