Woke up and hit the shower, typical day. Hot water...

Woke up and hit the shower, typical day. Hot water cuts out halfway through. After a couple of attempts to relight the pilot the problem is obvious. The pilot won't stay lit more than a few seconds. I then did precisely what everyone should do in this situation, I GOOGLED THE PROBLEM AND FOUND SEVERAL YOU TUBE VIDEOS ON HOW TO FIX IT. The problem was a dirty thermo couple. Apparently this gadget shuts the gas down if it doesn't read heat to keep your house from getting blown sky-high. So the Cool Ray guy comes out. Calmly assesses the situation and tells me about a mysterious circuit that fails in a water heater. "Once it goes, you have to replace the unit". "Here take a look" he presses the pilot ignition two or three time and says "the pilot won't even light now". He's right, it didn't because the gas supply had been turned off. But luckily he had a refurb tank on the truck that I could have for the bargain price of 900 installed. So I asked him to clean the thermo couple for me and put the unit back in service and I would pay for a service call. "My boss won't let me do that sir because of liability.'" So basically this Coolray tech was running a hustle where he would take my water heater, fix it, and sell it to the next sucker for 900 bucks while selling me some poor customers tank who was stupid enough to fall for the con. I have no respect for people who try to steal money and that's precisely what my Cool Ray tech did. I asked him to leave. Bought 2 bucks worth of sand paper from the hardware store. Disassembled the burner and cleaned the thermo couple and put the heater back in service in about 30 mins. Needless to say COOLRAY will not be getting my patronage in the future.