Changeling blood from floors and gibs doesn't react to heat.

[cyberTripping]

While I can see the validity of using the blood that a changeling sheds for this purpose, a gibbed changeling is uh... well if you gibbed it and you weren't absolutely sure it was a changeling before you did it, you have bigger things to worry about than whether it was an alien or not.

I don't know about that. I feel that if people knew there was a changeling, it would be useful to be able to confirm that a gibbed body was once it. If people didn't know about this bug, they could even end up instigating hunts for an alien that isn't even there, since it seems pretty common sense. I could easily see a ling getting gibbed by being in the wrong place at the wrong time in a mixed round.