The Passion of the Bullfrog

In church, Arthur tries to behave.
It’s not easy, though.
He watches a woman in the next pew. She is holding a box, and sweating bullets. A green, webbed foot pokes out of the box, and the woman quickly snaps the lid back down.
“Ribbit,” says the box. “Ribbit ribbit.”
No time to lose!
“Bullfrog!” he shouts, and he grabs for the box. The entire congregation heads for the exits, and the priest ducks behind the pulpit.
For the next five minutes, he stomps the box flat.
When the police finally arrive, he tips his hat and walks out proudly.