Yes, I've had this conversation with several people, including my stepmom and of course my WIFE. I was primarily a guitar player, then switched to bass about 3 years ago, so I have about 6 electric guitars and 3 basses. I was honestly a bit dumbfounded by her ignorance, she couldn't tell the difference! "They all look the same to me!" I patiently pointed out that the basses have longer necks, MUCH MUCH thicker strings, and BIG tuning keys. Same with my stepmom years ago, our family went to a country bar, and while the band was setting up step mom asked if the "big guitar" was the bass...well, no, it wasn't. It was an ES-335, the bass player was playing a Fender. I pointed out the thick strings and big tuning keys.
Ninjaaron, Honeyiscool, apparently this place is a refugee camp for lost Harmony Central forumites ('Mr. Grumpy' here). the HC forums are up and running smoothly now, and a virtual ghost town.