I'm going to tell you a story. Are you sitting comfortably? Right, then I'll begin.
Once upon a time (75 million years ago to be more precise) there was an alien galactic ruler named Xemu. Xemu was in charge of all the planets in this part of the galaxy including our own planet Earth, except in those days it was called Teegeeack.
Now Xemu had a problem. All of the 76 planets he controlled were over-populated. Each planet had on average 178 billion people. He wanted to get rid of all the overpopulation so he had a plan.
Xemu took over complete control with the help of renegades to defeat the good people and the Loyal Officers. Then with the help of psychiatrists he called in billions of people for income tax inspections where they were instead given injections of alcohol and glycol mixed to paralyse them. Then they were put into space planes that looked exactly like DC8s (except they had rocket motors instead of propellers).
These DC8 space planes then flew to planet Earth where the paralysed people were stacked around the bases of volcanoes in their hundreds of billions. When they had finished stacking them around then H-bombs were lowered into the volcanoes. Xemu then detonated all the H-bombs at the same time and everyone was killed.