I collect old computers as a hobby, mostly 20 year old microcomputers — Apple II, Commodore, etc. Once, in an attempt to find one, I called a computer surplus store.
Me: “Hi. Do you have any old computers, maybe 10-20 years old?”
Salesperson: “Sir, there were no computers 20 years ago.”
Me: “Umm, ok. Bye.”
Then I cracked up.