dangerous
They are dangerous, because they have at LEAST 30,000 quills.
Who
Dangerous for the lifespan of the PSP at least
A caulking gun.
There is at least some reasonable and verifiable evidence behind a warranted assumption. I think that even with evidence, the consequences of an assumption have to be considered. Evidence is not necessarily proof. If harm will come to a person because of an assumption, then I would consider the assumption unwarranted. You can't go off hurting people because you think you're clever. That kind of behavior will come back to bite you.
skeletons are more dangerous because they have a ranged attack. A list most to least dangerous... ender dragon ender man ghast zombie pigman creeper skeleton spider slime zombie sheep, cow, pig, etc
It'll take a lot of gumption to espouse that assumption. That's your assumption. That is not an assumption.
Bungee jumping
It isn't especially "dangerous" if you take the trouble to learn the objective hazards of geography and weather, and how to minimise the risks from them.
The least dangerous HHPS symbol is Class D, which represents a less hazardous product with minimal or no toxicity, flammability, reactivity, or special hazards.
Its not dangerous, but it isn't right. It should take 2 hours rest at least.