Waling through service yesterday I overheard a woman complaining that she'd probably not ever buy a __y__ again (the brand we sell) because new cars just shouldn't need an oil change so often / early. She said that her girlfriend bought a __x__, and that she didn't need to change the oil for many months afterward. I was going to interject upon her initial claim that ___y___ cars weren't good, and that she'd buy something else until I heard that come out of her mouth, and her follow-up reasoning for one other thing. The poor service advisers were dealing with a grown woman who didn't understand simple math, and that she drove more miles than her girlfriend did over the course what I guess to be the same amount of time. She didn't understand mileage, only time. I felt it much better to not try to save this customer, instead letting __x___, __a__ or __b__ gain this level of intelligence (as they often do) as a customer. I'm sorry, but I'm used to a much higher educated customer than that. I'll work with the ones who have an IQ over 90. Likewise, I've just started to learn that certain attitudes just weren't worth trying to make a deal with. Sometimes walking back to the desk a customer is sitting at, but not sitting down, and saying "Thank you for giving us a chance, we hope you are able to find what you're looking for, but if you don't - we're still here for ya" as a form of "Goodbye" is in the best interest of the dealership on multiple levels.