Intelligence and infinite knowledge were not, it seemed, compatible with stable human existence. - Charles Stross

“Yes-yes!” Jon bounces up and down on the balls of her feet.
“How much coffee did we have this morning?” Pete asks, suspicion dawning.
“All of it!”
Brains absorbs this fact slowly. The room he and Pete shared didn’t come with a filter machine, but there was an industrial-sized one in the motel lobby. If Jon drank the entire jug—
“How many times did you refill it?” asks Pete.
“Only three times! It kept running out!”
Brains glances at the vicar. “Are we going to need a tranquilizer dart?” he murmurs.

In my experience, the best way to deal with such people is to politely agree with everything they say, then ignore them.

It is a government agency. And government agencies are run as bureaucracies. There is a role for bureaucracy; it’s very useful for certain tasks. In particular, it facilitates standardization and interchangeability. Bureaucracies excel at performing tasks that must be done consistently whether the people assigned to them are brilliant performers or bumbling fools. You can’t always count on having Albert Einstein in the patent office, so you design its procedures to work even if you hire Mr. Bean by mistake.