when I worked at the dealer service dept, I learn't a lot of stuff
one thing I learned was that you KNOW instantly if an owner is proud of his or her equipment just by it's appearance. With that, and talking to the owners, it became clear that even looking at their vehicle told all about how their new equipment was going to be treated. Someone who showed up with an old dodge 12v beat to heck and back with 14 shades of rust, they obviously didn't care much about the truck, and those types were almost guaranteed to be back with warranty repairs....and most of the time due to neglect or abuse (which isn't covered). But if I got a R/O for an M6, and I go out to the lot to grab the M6 for full service, and the M6 looks like new? And has 200 hours on it? You (me, the tech) takes a little more care of the customer's equipment--because it was obvious that the customer takes good care of his/her stuff as well. Now that's a generality but I found almost 100% of the time to be true. You bring a machine into the shop full of hay, grease, mud/poo and expect techs to put a little TLC into it? Good luck....they generally and a lot of times subconsciously treat it exactly as it appears to them. If it's well cared for, they put a little more time into it.
case in point yesterday. Customer brought me a Mule to work on (kawasaki). In our conversation before he showed up, I asked him of the type uses that it sees. Farm use. I asked him to stop by a car wash and blow the biggest part of the stuff off if he didn't mind, said he didn't have $5 and didn't have time. Ok fine. So it shows up I put it on my lift and start in. Well when you can't see the CV boots, you don't check them. Less likely to check tie rods, that kind of thing, if you can't see them. Either they can spend $5 to clean it off, or they can pay me $90/hr to do it with a garden hose. Or parts of the servicing don't get done. Usually the latter. Then the customer generally gripes about why this or that wasn't checked. As a tech, you can't win-ever.