If you need someone to take shots, I think I'm willing to try it, given how useful I'm being otherwise. I don't expect I'd be great at it, but I'm not so bad that it would likely kill me instead. I don't think.
Do we have reason to believe the second in line was also unlynchable? When no one was lynched I just assumed the mechanics for Tokyo said that nobody would be lynched if he got voted. Otherwise I'd expect the 2nd/3rd/whoever in line to die.
Well, the reason to believe chuckles was unlynchable is that he's clearly unkillable today. Although it could just be a day angel today.