Back in the mid 20th C, there was the category of no money in the meter then one puts a bob in and forgets to light the gas. Very popular,[especially amongst those that a bob was 2 hours wage or good seat at the local flea pit, where one went to get warm] but many a Coroner would call it death by mis adventure, it would only be a suicide if the note got to the court on time. Statistics are always suspect. I will never forget my first involvement with a Accidental death by one one of my fellow Engineers, whom I discovered early one sunday morning with all the associated mess. The details are still etched in my noggin nearly 60 years later. PS In my mind it was a Suicide by he being totally depressed and the future was totally bleak, 'twas why I emigrated so that I could eat. London was a great city but yee needed monies to eat, with a degree it only got me extra dog-ends, never the whole fag. Since then I have eaten very well.