I last went to Paris on my 21st birthday. We had planned a final morning trip to the Louvre before catching the train back to Calais. Placed my bag on top of the wall which runs around the dry moat of the Louvre. Jumped up on the wall to enjoy an enormous golden delicious apple I’d bought for breakfast and knocked the bag containing my passport into the moat. Whilst everyone else spent the morning gazing at the Mona Lisa, it took me over 2 hours in my pigeon French to make the museum staff understand what had happened.