“There is no such thing as a stupid question”… That definitely sounds like it came from someone who asked lots of stupid questions. There are many stupid questions. But even more so there are unnecessary questions.
Nowadays you can type most of your questions into a search engine and find the answers. A person has roughly only 16 hrs a day to enjoy being awake and alive. Why waste their precious moments by putting them on the spot for a few seconds? If they don’t know the answer then you have just embarrassed them, but if they do know the answer you just made them look like they’re a show off. Who are you put someone into that kind of position?
There is no excuse to waste the time of your fellow man by asking him a trivial question when we live in an age that has google.