If it wasn't for having so many witnesses I would believe I have had a crazy hallucination. I was sitting with 4 other people all of us just chatting and surfing our phones looking at old pictures when I felt what I can only describe as a weird tingle and burn sensation and figured a bug was biting me so I put my phone in my cup holder of my chair and swatted my arm. Next reaction was to look to see what exactly had happened and if I managed to smash the bugger. When I looked at my arm I was surprised to see a W scratched into my bicep. I started kinda freaking out and asked the others (none close enough to touch me) if they saw it also and they did. Cannot say i am truly scared just perplexed and wish I understood it better... Would truly like to know what it stands for and who did it.
Wish I knew how to attach a pic because it was a really weird looking W more like overlapping V's and the bottom of the V's extended further then the point they connected like this ^ type of shape at bottom of the W...
Have any of you ever had a similar experience or heard of such a thing? Kinda at a loss of what to do or where to look next.

Flectere si nequeo superos, Acheronta movebo.