The risks aren't significantly different than from other things people do on a regular basis. People have died from objects falling out of the back of a pickup truck. People have died from a long list of shoddy home improvement projects. People have died (and killed others) from working in an official capacity for the Department of Transportation.
The answer is to do the things that you do safely, not to never do anything.
Someone was suggesting that we discourage people from doing something because of "risk", and that thing is not significantly more risky than other things people commonly do.
