Phule Me Twice by Robert Asprin & Peter J. Heck

“Sheeee-it! It’s the renegade robots!” cried Chocolate Harry, and he fell flat to the ground, reaching for a weapon.

“Looks like it, doesn’t it?” said Sushi. “We’ve been showing them kids’ adventure holos, and they must have decided they want to look like Roger Robot. You can get up, Harry. Meet the Nanoids.”

“Nanoids? What the hell is that?” said Harry, slowly getting to his feet. He eyed the new arrival suspiciously.

“They’re the whole reason we came to this planet,” said Phule. “They share Zenobia with the Zenobians, and now we’ve got to arrange it so the two species can coexist in peace. And as it happens, I’ve got the perfect ambassador in mind.”

“Ambassador? Who’s that?” said Armstrong.

“Yours truly, of course,” said an uncannily familiar voice. The voice came from the Andromatic robot, which they now saw was dressed in a tuxedo, carrying an impressive-looking portfolio under one arm.

“The robot?” said Jennie Higgins.

“That’s right,” said Phule. “The Zenobians will accept it because it looks like me, and they already think of me as a human of unusual integrity and leadership-“

“I can’t imagine where they got that notion,” said Beeker, dryly.

Phule ignored him. “And the Nanoids will respond to its robotic logic in a way they couldn’t to any organic ambassador. So both sides will trust it, and meanwhile, it’ll remain completely loyal to the Alliance, because it can’t conceive of any other course of action.”

“Man, are you sure about that?” asked Chocolate Harry, squinting carefully at the Andromatic robot.