Many many years ago when I was in college, I was in a production of Seven Keys to Baldbate.  The show was winding down and the police were supposed to come in and wrap up the mystery but they didn't come on.  We waited and waited and then waited a bit more then I just stepped out the frond door and looked backstage only to find the police office (female) in the middle of "pleasing" the stage manager (male).  I went out the door and "discussed" with them that she needed to be onstage now.  I thought that I was being quiet enough and I used some words that were not mom worthy.  We ended the show and I spoke with my mother afterwards (who had been in the audience) who informed me that she and the rest of the audience had heard every word.  Somehow I had found the only spot in that theatre with good accoustics to deliver my tirade.

We recently staged Man of La Mancha and, apart from the theme song being christened by the backstage crew "The Impossible Note" - all went well. Until one night when Sancho inadvertantly called Quijana - Cohones!!

Another incident sums up very small town community theatre so well. This was many, many years ago and we had cast a local cop to play - the local cop. Curtain was a few minutes from going up and no sign of him. Major panic all round. Finally, five minutes after curtain up (stagehand busily dressing for his first ever role) - he arrived.  His reason for being late? He was delayed at the police station because he had to arrest someone who was drunk & threatening to shoot his wife.
"I had to charge him with dangerous use of a firearm. If'd I'd made it attempted murder I'd still be there"

Those were the days!

Just to let everyone know that 'accidents' aren't always on stage:

Ok so here is one of my flubs, although in my defense I didn't break character and kept moving.  I was doing a play called "The North Platte Canteen" and I played Nancy the reporter. The line is "Well I feel like I'm halfway down Alice's rabbit whole anyway, why not."  Instead I said, "Well I feel like I'm half way DOWN ALICE'S HOLE..."  I said it as per usual and a split second after I said it I realized what I said and told myself just go on (luckily the other actress was speaking at this point).

So you are not alone... and yes the rest of the cast for the rest of the run always listened extra carefully when that line came (I could feel their energy from back stage lol).