This newbie driver was a little heavy on his axle, so the DOT man instructs him to pull around back and adjust his weight, then come back around.

The driver pulls to the back, sits there for a few minutes, and comes back onto the scales.

"Your weight still isn’t right," the DOT man informs him. "Pull around back, adjust your weight, and come back around."

So, the driver pulls to the back again, sits there for a few minutes, and drives back onto the scales.

The DOT man frowns and says, "Driver, I’ve given you two chances to get your weight right. What’s the problem?"

The driver answers, "Well, I’ve been pushing this button that says ‘lighter’ and it’s not working!"