Had a customer in Phoenix tell me to just 'blend it in' on a 20 year old paint job

Last month I had this older guy bring in his 2004 Silverado that had clear coat peeling all over the hood. He pointed at a small chip and said just blend the clear on that spot, save me some money. Tried explaining that clear coat failure doesn't work like that, you gotta strip and respray the whole panel. He got kinda mad and said other shops do it all the time. Anyone else run into customers who don't get how clear coat actually works?