I'm going to bring in delicious food to the office to purposely wreck my coworkers' diets
Why do you want to wreck your coworker's diets?
Yes, because if they start to gain weight, I can pick on their hair style and fashion again.
You shouldn't sabotage people's goals. You wouldn't want someone to hurt you like that so you shouldn't do that to others either.
Okay, you are right, but I will still bring in delicious food to wreck their diets.
Sabotaging someone's goals and setting them backwards is not right to do. You could be participating in damaging their health if they are trying to lose weight to improve a health condition.