Gratitourette Syndrome

Combination of Gratitude and Tourette Syndrome. When a person (most often a middle manager) is unable to say the words "thank you" for even the most minor task, no matter how well its done or the amount of effort involved, and instead substitutes verbal tics such as "I don't like the color" or "you missed a spot". Can be abbreviated as Gratitourettes.

I just mowed Steve's lawn in 90 degree weather as a favor, and his first words were "You mowed it side to side, not in a spiral, now it looks bad." I think he must have Gratitourette Syndrome, so I just said "you're welcome" and walked away.