On the weekend, you can eat anything and everything.

On weekdays, you can't eat certain things because of "allergies."

On the weekend, you have all the food in the world

On weekdays, you have disgusting school lunches

On the weekend, you don't starve.

On weekdays, you starve from the moment you wake up

On the weekend, you can be as fat as you want.

On weekdays, you're as skinny as a stick