Funeral business trivia

Despite how solid they look, most coffins are designed to collapse once they have 100 lbs of pressure on them. This way they break before the grave is even finished being filled in, so the grounds crew doesn't have to run around later filling in occasional sinkholes around the cemetery.

My cousin learned this the unfortunate way, after cemetery staff made an awful mistake and he had to bribe a grave digger $100 to get my aunt's body moved from the wrong plot into the right one without an exhumation order or a lawsuit.