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 !"