If you ever want to have nightmares, just scan through some of the OSHA accident search results with the keyword “excavator.” These accidents -- 509 accidents going back to 1986 -- aren’t always what you would expect. You may think you know all the dangers related to excavators, but remember that the human race always seems to think of new ways to harm ourselves. Here are some, shall we say, more unusual accidents related to excavators, including one involving final drive maintenance.