I was attending a joint YM/YW mutual activity and we were all in the primary room playing some group games.
Whatever I had eaten that day was quickly building up inside me to the point that it was getting painful. Every few minutes I had to step out into the back foyer and relieve myself.
On one of my excursions I faked getting a phone call, stepping into the back foyer and then quickly glanced around the corner to make sure nobody was coming. Then I let it go. It was one of those that just keeps on going and there is no way to stop it. To my horror as I started, one of the ninja like YW leaders came dashing around the corner and there I was just belting it out like a trombone with no way to stop. She just looked down and said a quick friendly hello and then ran into the room with everybody else. I think I finished after the door had actually closed on her.