One time, someone handed me a USB-C and thought it only worked on cellphones.
Another time, someone handed me a mini-hdmi cable and thought it was only designed for project computers.
Someone(a normie by normie standards) once lectured me on how using a long enough alphabetical password is sufficient for even super-computers to struggle with.
I once saw a post on Craigslist on how someone ranted about how they should be able to turn left(in the US) at a red light if they think they could make it fast enough.