Had a guy like that at work once. Worked with him for years, great guy but had apparently done every job under the sun including tour manager for a very famous big name musician. We all thought it was bullshit until we see him in the street and the two start chatting about old times
That was nearly me one time, in Normandy. Blatted away from the lads I was with, missed a turn-off and ended up in the middle of the local town. Fortunately I remembered a few landmarks and found my own way back to base about ten minutes after the others got there. Otherwise I'd have been stuck with no phone, no address and my only chance would have been some local being able to answer my question, "Oú est Mme Alison, s'il vous plait?" What a donkey.
