Last Thursday, I came to work to find a note on the fridge that said that the fridge would be cleaned the next day. The note also said to clearly mark anything you did not want thrown away with a sign "Do not discard".
I printed up a large "'Do not discard" sign and taped it up to the bottle of dressing I keep in the fridge.
The day after the fridge was cleaned, I found out that my dressing got thrown away. Should not have bothered with the note after all!