A very Nice Story:
A child woke up early in the morning and refused to greet his mother. The mother asked him: won't you greet me? The child ignored her and went to school. The mother taught he would greet her as he returns from school but he still ignored her. He did the same in the evening. But when he finished having his dinner he said: Mummy, good morning, good afternoon, good evening & good night! The mother said: what's wrong with you? He replied ''I'm Ok mum.'' I always see you combine your prayers (Zuhr, Asr, Maghrib & isha) when going to bed. So I'm doing the same. The mother replied: you are not serious. Is it good to disobey your mother? The child asked "is it good to disobey Allah?" Then the mother was mute.