" We try to make guests feel welcome," said Dee, scuttling behind his desk. He pulled off his pointed hat and, to Vimes's amazement, put on a pair of thick smoked glasses.

"You had papers?" he said. Vimes handed them over.

"It says here "His Grace"," the dwarf said, after reading them for awhile.

"Yes, that's me."

"And there's a sir."

"That's me, too."

"And an excellency."

"'fraid so." Vimes narrowed his eyes. "I was blackboard monitor for awhile, too. "

― Terry Pratchett , The Fifth Elephant (Discworld, #24; City Watch, #5)