How to do root cause analysis for any issue ?

A Management lecturer was talking about QUALITY and it goes like that:

Lecturer: We all know Lord Ram went to spend 14 years in forest and Sita was kidnapped because of a QUALITY issue.

Student: How is this anything to do with quality?

Lecturer: Tell me why did Sita go to forest with Ram ?

Student: Because she was his wife and respects his every decision.

Lecturer: OK but why did Ram go to forest ?

Student: Because his father Dasharatha told him to do so and he never deny his father.

Lecturer: OK why did Dasharatha send his son to forest ?

Student: Dasharatha offered his wife (Kaikeyi) two boons , and she chose to make use of them in the future. And she wanted her son to be king, so on the day of Rama's crowning, she asked Dasharatha to send Rama to exile reminding him of his promising boons.

Lecturer: So why did Dasharatha offer his wife two boons ?

Student: Because during a military campaign against Sambarasura, the wheel of Dasharatha's chariot broke and Sambarasura's arrow pierced the King's armor. She nursed the wounded King back to health. Touched by her courage and timely service, Dasharatha offered her two boons.

Lecturer:  Hence Proved. 

The QUALITY of Chariot's wheel was not up to the mark hence lead to all the next successive episodes like kidnapping of Sita & so on... 'that wheel of dasharatha is the Root cause "

http://www.santabanta.com/jokes/17810/root-cause-analysis/