Ask, and you may learn.

Sometimes people see things, and don't really understand them.

So they either ignore it (and then the next time it comes up, they still don't know, but by then they really should, so it's too late to ask), or they say "I have no idea what this means", but never ask for an explanation.

If people would just ask, there are plenty of us out there that would just answer.

And then you would know :)