I can see where you're coming from, but what if the person was trying to free their family of having to work so hard? i don't think that's a slap in that face, but i'm looking at it from a different angle.
No one HAS to work hard because of you. The people that you feel you are a burden to allow you to be a burden because they love you. They choose to work hard in hopes it will allow you to become self sufficient. If you decided to end your life, you are taking something that they have been working very hard to improve and destroying it beyond repair forever.
On the topic of suicide in general...
I thought about it several times myself. I have epilepsy, and for a few years I was having so many seizures, I was unable to work or drive, and it was unsafe for me to be alone if I needed to do something such as cook or bathe. I tried several different medications over that time period. Depakote, Dilantin, Trileptal, Valium, Klonopin, Tegretol and several others. Part of my depression most likely came from the drugs, but that didn't make it any less real.
Every time I thought about suicide, I just thought about what my funeral would be like. Thinking of all those people that I know and love mourning my death, that made me feel even worse.
If you have children or siblings, or if your parents are still alive, I would suggest you think of them when the feeling hits you.
Just remember, the deeper that sorrow carves into your being, the more joy you can contain. Life is nothing more than a series of peaks and valleys. This is most likely the deepest valley you have ever seen. You should be looking forward to climbing the tallest peak that will come after you reach the bottom of your valley.
I could say more, but many people have expressed my feelings on the matter much better than I ever could.
"Suicide is a permanent solution to a temporary problem." -Phil Donahue
“Anyone desperate enough for suicide...should be desperate enough to go to creative extremes to solve problems: elope at midnight, stow away on the boat to New Zealand and start over, do what they always wanted to do but were afraid to try.” -Richard Bach
“The most authentic thing about us is our capacity to create, to overcome, to endure, to transform, to love and to be greater than our suffering.” -Ben Okri
“As anyone who has been close to someone that has committed suicide knows, there is no other pain like that felt after the incident” -Peter Greene
“The thought of suicide is a powerful solace: by means of it one gets through many a bad night” -Friedrich Nietzsche
“There is but one truly serious philosophical problem and that is suicide.” -Albert Camus
And to the people who say killing yourself is the cowards way out...
“Suicide sometimes proceeds from cowardice, but not always; for cowardice sometimes prevents it; since as many live because they are afraid to die, as die because they are afraid to live” -Charles Caleb Colton