When it comes to home construction (or any kind of construction, really) safety should always be your primary concern. If you’re not taking steps to ensure no bodily harm comes to you or those around you, then that’s just plain dumb.
For example, one thing you should never do when building something is use your own hand as a hammer. I wish this was just a hypothetical, but sadly, it’s not, as you can see in the video below.
Well that’s going to leave a mark. Hopefully he has really good health insurance and his employer is all paid up on their premiums!