Theres this old guy down the street from me, his front yard is just below a slope that his neighbor one house up has. Whenever its raining the water goes down the slope and sits in his front. He has guys with walk behind big commercial mowers do his yard and they make a mess of it. I noticed they did it earlier and now there are big muddy tire marks in his front yard. Should I see if he wants me to do it for him with a regular 21" mower that will make less of a mess? His yard is nice and thick and those guys always make a mess of it. I go by it everyday and it looks bad. Last year they did the muddy parts of his front with the string trimmer, now they use the mowers and make a mess of it. In a couple weeks I'll start doing the yard one house up from him and should I see if he if he wants me to do his. What do you guys think?