Gothmog looks dubious, but he is pretty thirsty so relends and goes back to the fountain.
"…" says Gothmog.
"What?" said the rest of the party.
"I said I needed that" croaked Gothmog coming closer.
"What?" said the rest of the party.
Gothmog came up closer to the party. "I said I needed that, and I appear to have a frog in my throat." he said.
The rest of the party looked at him for a good long while, but it turned out that at least Gothmog didn't have a crap sense of humour, and was merely stupid.
"You don't drink the frog!" said Stamm.
"I thought it was like the Tequila worm!" croaked Gothmog.
"There was no frog," muttered Mophus, and everyone else decided it was best to move off through the portcullus before it all started getting too silly.