Step 1: Make sure the truck with the trailer is NOT in neutral.
Science can be dangerous.
This guy cracks his skull. Ouch!
That's going to leave a mark.
That's a good way to dislocate your leg.
This guy was carrying his girl to keep her feet from getting soaked. Everything was going well until he stepped into an open manhole.
Well that didn't go as planned.
How to pierce your tongue for free!