Colin suspects David of having an affair with his wife, Mary. So he does what any rational, sane man would do in such a situation. he challenges David to a duel.Colin suspects David of having an affair with his wife, Mary. So he does what any rational, sane man would do in such a situation. he challenges David to a duel.Colin suspects David of having an affair with his wife, Mary. So he does what any rational, sane man would do in such a situation. he challenges David to a duel.