Soldato
I had something similar, I had a terrible migraine one day and just couldn't get out of bed so had to phone in sick.
My mother in law posted a photo of my daughter at the beach the same day and tagged me in it. The photo was taken 2 weeks before.
Someone, and I know who it was, printed it off and put the screenshot on the managers desk without even speaking to me or the manager. My manager found it the next day and I was pulled to one side and asked about it.
Even though he was a giant *** hat he took my word for it.
Things like this really wind me up, used to see it all the time when I worked in Sainsbury's, people telling tales over pathetic things, so many sad sour vindictive ***** out there!