The wife with the donkey
Whilst visiting Ireland last year I was cycling down a country lane when I met on old farmer riding a donkey and five yards behind him walked a woman. When I asked him why this woman was walking five yards behind him, he told me "Because she is my wife and I only have one donkey". Then recently whilst on travels in Bosnia I came across a guy riding a donkey and five yards in front of him walked a woman I guessed to be his wife. I asked him why his wife was walking five yards in front of him, and the guy explained in a tone of voice suggesting that he tought I must be terminally stupid: "Because we have landmines around here !"