By "absolute" whatI mean't exactly that - we have a responsibility to exercise reasonable care to avoid causing harm to others. Accidents can happen which are not our fault.

But it is meaningless to talk about having a right to abdicate that responsibility. As meaningless as to talk about having a right of property in another person.

I'd quite accept that you are acting responsibly. But as you said, there are millions who don't give a damn. When they choose to act in accordance with that I do not accept their right to do so.