Personally, I'm as vigilant as they come, especially with children. But no matter how vigilant I may be, I would not EVER have thought about the presence of mountain lions. I also am curious where you got your statistics that no one reads those signs anyway. I read ALL the signs and pay attention to what they say. Would the average person know how to behave should a mountain lion come around? I don't think so, yet those signs DO tell us what to do and what NOT to do (such as run). Comparing a warning/informational sign about the dangers of mountain lions shouldn't (obviously) be compared to the woman who (allegedly) didn't expect her coffee to be as hot as it was. Were you just trying to be funny with that analogy?
Sorry that's just my wicked humor leaking through. I'm happy that you're one of the few that reads the signs. I don't how many times I've seen people driving the wrong way on a one way street, or ignore wet paint, floor.... all with disastrous results. About the unfortunate woman who was burned by her coffee, the main reason she sued was to get people to lower the temperature of the coffee, I'll agree with that. I'm just saying if you're outdoors or in the woods it's never a safe place. even animals that seem safe aren't, people are killed by deer, elk, bison..