Yeah, it's that classic tech trap where the idea is way better than the real thing (like those "waterproof" bags that aren't). Most of those small solar panels just can't gather enough power unless it's direct, perfect sun all day. You're honestly better off with a big, dumb power bank you know will work.

Break out the shop manual and physically point to the line item for "remove intake manifold" (because that's what you gotta do on most of those Duramax years just to get to the back plugs). Tell him straight up that the book says 2.5 hours and your rate is your rate. If he still balks, offer to let him supply the parts and you'll just charge labor, but warn him that aftermarket glow plugs are a common cause of "why is my truck throwing codes again" a month later. Some customers just need to see the why behind the number, even if they still won't like it.

Jackson's line about the mice offering to help is hilarious because it's probably true. I can picture them leaving little rodent-sized toolkits and a handwritten list of complaints about your shoddy patchwork. At some point they just start charging you for labor and materials. You'll find a tiny invoice for chewing through that drywall you messed up.