Paddy in Belfast sends us this series of shots from his office kitchen, where several of his coworkers have taken their frustrations with microwave cleanliness into their own hands.

It all started when one day, a microwave appeared bearing this note:

…but SDT wasn’t taking any chances.

Later, a second microwave appeared, complete with its own note:

…which prompted this note on the wall between them:

related: No smelly foods