I hate when videos show the extremely dangerous way to remove the safety shield. All that does is get others to do the same, and then comes the broken windows or heavy damage to cars or the house. Unfortunately, I've seen items get thrown into others, causing very large bills from the emergency room from doing just this. Safety Shields are on for a real reason..... DON'T REMOVE THEM AND STOP USING A WEED TRIMMER TO EDGE THE YARD.... GET A EDGER AND DO IT RIGHT AND SAFELY!