The royal seal lets out a regal "l'eggp."
"Oh, for f- That's not the kind of royal seal I'm asking to see!"
"Ah! But it is a royal seal."
The lady thinks about it, and after inspecting the seal for signs of inauthenticity, she acquiesces.
"I admit... It is a royal seal."
"Will you now tell me what you know about gnomes?"
"Okay then, you convinced me. The cheesemonger, I have it on good authority that he is a gnome."
"The cheesemonger is a gnome!?" (You and the seal in chorus.)
"It's a literal grey seal! I don't care if it's royalty, it isn't proof of your identity."
"Come on now, look at it!"
The royal seal makes a noise that's somewhere in between a sneeze and a fart.
The lady looks impressed, as if she momentarily reconsiders, but...
"...even if it did prove anything, why should I listen to a delegate of Charlemagne?"
"He's your king!"
"I never voted for him."