I've got two; decades apart!!!
This happened at technically a dress rehearsal, but we would invite the locale senior citizen housing folks to watch...so it was pretty full in the house. When I was Ermengarde in Hello, Dolly, we had gotten to the courtroom scene (after the debacle at the Harmonia Gardens) The very end of the courtroom scene the blocking required that everyone BUT me exit stage R. I went stage L to plant a kiss on the judges cheek. About halfway TO the judge my "dancer's knee" gave out and I faceplanted on the stage. Straight down, splat. The only other person on stage helped me up and got me off stage. (We were sure there was going to be a breakout of heart attacks.) But the funny part comes in the next scene. We all show up at Vandergelders to claim what is our. I made my entrance with my Ambrose (heavily leaning on him) and all you could hear sweep through the audience in whispered tones: She's there, there she is. And then one VERY loud voice: "See, I TOLD you it was part of the play!" Hard to say who lauged harder...the audience or the cast!
A few years ago, I choreographed The Pajama Game. During the performances, the director and I keep a set of doors open because we watch the show from the lobby. My daughter (who was 6 or 7 at the time, and SHOULD have known better) didn't have a seat because her father was picking her up (at any minute) and she was watching the show with us from the back. And then she was missing. NO one knew where she was. After a few frantic moments, my set designer taps me on the shoulder and points to the stage. There on the downstage right corner of the stage is my daughter sitting directly on the stage. At center stage a group of girls were singing the hell out I'm Not At All In Love. And my daughter is inching over toward them. (The actor's never noticed her, btw) And inching, and inching. Luckily we have ailses on the outside of the audience seats, so I was able to get to the front of the house with minimal distraction to the audience. Thankfully, I was able to get her attention and get her off the stage. (Of course, by now most of the audience DID indeed see her!) I think her plan was to just become a part of the number...when she finally got to them!!!
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.