As he waited in the parlor, making polite small talk with the young woman's parents, he knew he was in trouble, for he felt powerful pneumatic pressure from an earlier meal building within.
There were oil lanterns burning in the parlor, so he wasn't too concerned about fragrance, but the sound of release would be a problem. He looked around and devised a desperate and clever plan.
He noticed the door to the kitchen was standing open. He decided he would nonchalantly stroll to the door and close it vigorously -- vigorously enough to make a loud slamming noise, masking his simultaneous release.
So as he continued small talk with the girl's parents, he made his way to the door. In an Oscar-worthy performance, he casually noticed the door standing open, and -- with a helpful look on his face -- grasped it and whisked it strongly aside to close it. Anticipating the slam, he simultaneously he loosed the string and released his abdominal pressure.
Unfortunately the door swung silently through its frame and back into the kitchen -- it was a swinging door. The parents were treated to a loud "Brraaapppp!" as it swung through its arc.
I do not have any details on what followed.