What should someone do if they're about to kill themselves but do not want help from others, as they do not want to be a burden?

Situations do differ: Assisted-dying is not illegal in about 5 states in the U.S., so if an adult there has a terminal illness, or is in a comparably bad situation, he has the right as a free American to choose his own destiny. However, many people become suicidal for other reasons, which are often temporary (breaking up with a loved one, loss of a job, etc...), so calling 911 to save them gives them a second chance.