World's population: ~7,000,000,000 people
China's population: ~1,340,000,000 people
India's population: ~1,240,000,000 people
Europe's population: ~739,000,000 people
America's population: ~311,500,000 people

As I see it a 2.5 in 7 chance to kill someone in India or China.
A scant 1 in 7 chance to kill someone who might matter (Europe or America) And some of those Euros are Italian, so the numbers are getting better.

~8% of the population is elderly, so that means you're really only killing 92% of a person with each space.

I'd click the space bar 10 times a week for the rest of my days.