I was answering to this question:
and I have an idea.
Other sites have images on some tags, like this one for "android" tag on Stack Overflow:
What if we could have something like this on (already existing) "mains" tag?
This is just ugly concept made in Paint to show what I mean. Im pretty sure that graphic designers who work on this site will draw more pretty warning sign, or maybe someone will post (16x18px?) graphic under my question.
It would work also as kind of "psychological warning" - be careful, this is dangerous.
What you think about this?
I made better 18x16px icon.