Sufferers kill themselves in a mistaken belief that they are doing what's best for their family.

Perhaps sometimes. Other times they just want to stop dealing with life, but the thought of making their family suffer a loss prevents them from doing it.

I have had some dark thoughts in a certain stage of life, but feeling indebted to my parents - who took care of me when I was sick - was the first opposing thought on the list.

Although in reality it's more complex.