It's rude to sell shoddy products to people.
Chris wants to sell a universal TV remote that only works with half the TVs it says it does.
Chris wants to sell the remote.
Chris decides to disassemble the remote and try to find the issue.
Chris puts the remote for sale but leaves all the problems with it out.
"Chris is able to fix the remote and lists it as ""seller refurbished""."
By chance the buyer has one of the TVs it works with, so they don't notice.