An angry husband quarreled with his German wife on a Lufthansa flight from Munich to Bangkok. The argument escalated, resulting in the plane making an unscheduled landing in Delhi. The husband was offloaded in Delhi while his wife continued to Bangkok. He later apologized and flew to Bangkok on an Indian airline. Lufthansa is considering legal action against the husband and has banned him from future flights. This incident is similar to a previous case where a flight had to divert due to a marital discord.