The Phantom Fly Catcher is locked out

A nice spring evening...a bike ride home from the pub...freewheeling fast down the hill...and then, suddenly, a big fly in mouth and, yup, straight down the throat.

Gulp.

Good job I'm not a vegetarian any more.

Then home to discover we'd locked ourselves out. But we have a back door key in [a secret place]. Hurrah! But we've left the backdoor key in the lock on the inside. Boo! So there followed ten minutes of faffing about, trying to poke the key out etc - while all the time the cats, quite uncharacteristically, were going in and then out of the catflap. Just to rub our noses in it.