Get their head out of their ass. No one needs a smart ass, merely an ass with intestinal fortitude, which is excramental to its efficiency.
Once the head has indeed been excavated from the deep, dark, catacombs of the ass, it must be run through the car wash. Only the pressure of their mighty jets can chip into, and break down the hardened sludge deposited in the kinks of the brain through the years.
Then its wax on, wax off. This lends a depth of wisdom and patience to the raw, exposed freshly cleansed brain kinks. Although it does tend to instill in one a strong desire for Kung Pao Chicken along with the urge to Roundhouse the next person you see to the ground.
Small price to pay for getting your head out of your ass.