I Experience Spooky Goings On

I once worked for the BBC as a scenery painter .... out on location we were working in Drymen Scotland ... setting up some scenery near a disused anti aircraft gun site ... my carpenter friend was standing on this three foot thick concrete circular surround ... inside was full up with foul smelling stagnant water ... he knocked his hammer into the water .... upon retrieving it out I lifted out of the water a heap of rag and tossed it to one side ... once we had got his hammer out I went over to this heap of rag and opened it up .... it was a fully formed shirt ... apart from being soaked it was in good order .... I looked at the label on the collar ... writing was alien .. maybe Russian / Eastern European ? ?
Spooky thing was .... the shirt had a bulletproof hole including blood in the back !