Politically Incorrect?

Here's some expressions you ought to use more on your colleagues: Politically correct ways to say someone is stupid
1. A few clowns short of a circus.
2. A few fries short of a Happy Meal.
3. An experiment in Artificial Stupidity.
4. A few beers short of a six-pack.
5. A few peas short of a casserole.
6. Doesn't have all her Corn Flakes in one box.
7. The wheel's spinning, but the hamster's dead.
8. One Fruit Loop shy of a full bowl.
9. One taco short of a combination platter.
10.All foam, no beer