Why is the rule there? That is the question you need to think about and does the answer follow a logic or personal path. Is the rule there “just because” or a problem with a previous tenant? Might be time to review the rule.

A no eating in a room might be there to prevent an infestation of bugs, but why should that stop a tidy eater eating in their room?

Does no eating in a room extend to a bag of sweets? Why would you restrict someone from having a snack in their room while watching someone in bed or on their personal devices?