Was working today in the midst of a heavy schedule and an elderly gent strolled into the back yard I was mowing. Stood there patiently waiting for me to stop and address him. I shut down and asked if I could help him. This is the bizarre part of this story. He said, "I want you to take the debris guard off my new weed eater, I just bought it and I don't know how." I politely told him I had a very heavy schedule. He was persistent. I said, "I'll take a look". Thinking he was a neighbor of my customer. I stopped everything and followed him to the street where to my surprise he had stopped his "rig", a homemade plywood trailer with an old Murray rider in the back. He said he saw I was in the business and saw my line trimmer without a shield and thought he would like his the same. He was holding his plastic bag for his new line trimmer in his hand with the owners manual, wrench, etc. I said, "Sir, you are puting me behind schedule, this is how I make a living and I have a very heavy slate today". He said, "It's how I make a living too, I need you to help me out". I then showed him the four nuts that need to come off and told him there was no reason he couldn't use it with the guard on and to take it off if he wanted to at his convenience. I said I'd like to be a good samaritan but you are costing me money and putting me behind schedule. He knew I was steamed at this point and gave it up and got in his vehicle. This old fella actually wanted me to stop everything I was doing and take that shield off right then and there for him!