Liability seems to be focused on pointing blame, and then based on that we decide who should clean up. In situations like this perhaps it would be more product

Liability seems to be focused on pointing blame, and then based on that we decide who should clean up. In situations like this perhaps it would be more productive if we had a system that focused more getting everyone to clean up and prevent this from happening again first, and then look at the liability part. I do believe that this is the innate human response, the desire to "do the right thing". Most of us have the right mixture of nature/nurture to want to do that. But if the system doesn't enable that behavior or punishes that, that behavior will get suppressed and we end up in a miserable situation for everybody. I dunno, it's not exactly an easy question or it would be solved already, and bad faith actors will exploit the goodwill of others too.