You're absolutely right. We can presume all manner of things since there's not much information. I thought it would be interesting to suppose different things and see if people's opinions change. Obviously, yours didn't.
That's a good point.
Hmmm....I can't imagine using a safe word frivolously because that's akin to crying wolf, but then again, I've been known not to use mine out of sheer stubbornness.
Really? I've never used a safe word during punishment. In fact, the thought never even crossed my mind. That's not to say I don't protest, whine, beg, plead, or try to squirm away. If it works, fine. If it doesn't....even better! *ggls*
I think the majority of people use the traffic light signal to denote varying degrees of "stop" with "yellow" usually meaning "slow down, proceed with caution" and not necessarily "STOP," so I can see where ignoring it might be acceptable.