These are HYSTERICAL!!!!
This one isn't that embarrassing, because there wasn't an audiance. But my brain was going a million miles a second when it happened.
I'm Yente the matchmaker in Fiddler on the Roof *our opening night is tomorrow! w00t* and my first line when I walk out is "Golde, darling! Where are your daughters?" So it was one of our first rehearsals and this is what happened:
Me: *enters stage* Yente, Darling! Where are your daughters?
Claudia: Yente...I'm Golde.
You're Yente.
Me: Yes Golde, I know. that's what I said...
Claudia: Actually, you called me Yente...
Me: Did I? Well, they do say the mind goes with age.
Then we continued the scene. But it was so embarrassing because it was a new director and ugh. But now the whole cast laughs about it.