"Some thought Barnes must've swallowed a tadpole while drinking out of a spring and it subsequently grew inside him, while others allowed that maybe he'd accidentally eaten frogs' eggs some time and they'd hatched out.
But anyway, he had that frog down there inside of him settled and permanent and perfectly satisfied with being in out of the rain.

It used to worry Barnes more'n a little, and he tried various things to git rid of it.

The doctors they give him sickening stuff, and over and over agin emptied him; and then they'd hold him by the heels and shake him over a basin, and they'd bait a hook with a fly and fish down his throat hour after hour, but that frog was too intelligent.

He never even gave them a nibble; and when they'd try to fetch him with an emetic, he'd dig his claws into Barnes's membranes and hold on until the storm was over.
"Not that Barnes minded the frog merely being in there if he'd only a kept quiet.

But he was too vociferous--that's what Barnes said to me.
A taciturn frog he wouldn't have cared about so much.