These quotes were taken from actual Federal (US) employee performance evaluations...

"I would not allow this employee to breed"

"This employee is really not so much of a has-been, but more of a definite won't be"

"Works well when under constant supervision and cornered like a rat in a trap"

"He would be out of his depth in a parking lot puddle"

"He sets low personal standards and then consistently fails to achieve them"

"This employee is depriving a village somewhere of an idiot"

"This employee should go far, and the sooner the better"

"Got a full 6-pack, but lacks the plastic thing to hold it all together"

"A gross ignoramus - 144 times worse than an ordinary ignoramus"

"He certainly takes a long time to make his pointless"

"He doesn't have ulcers, but he's a carrier"

"I would like to go hunting with him sometime"

"He's been working with glue too much"

"He would argue with a signpost"

"He has knack for making strangers immediately"

"He brings a lot of joy whenever he leaves the room"

"When his IQ reaches 50, he should sell"

"If you see 2 people talking and one looks bored, he's the other one"

"A photographic memory but with the cap over the lens"