For the victims of office kitchen food thieves, often their only sense of justice is a passive-aggressive note stuck to their fast diminishing food item.

But for one woman battling with a coffee creamer thief, her note is a lesson in getting something some would say is better than justice: Revenge.

In an image uploaded to Reddit a woman identified only as "B" definitely got the last laugh.

Photo / Reddit
Photo / Reddit

Attached to a bottle of milk she suspected was being pinched, she wrote:

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"Good morning. To whomever has been enjoying my coffee creamer all week ... Surprise!!!

"You've been drinking my breast milk. Hope you've enjoyed - cheers!"

In case her horrified thief was concerned for their health, thoughtful "B" noted drinking breast milk is harmless: "Ps. It's organic. So no worries".

The photo has been liked more than 12,000 times on Reddit with some users suggesting the theif should be grateful for the added nutrition they would have ingested from the breast milk.

One user wrote: "I would find out who it was and charge them for the great nutritional supplement they got for free.

"Bet they felt great that week and didn't know why!"