Yea but that is only a % of an already small %. We all understand that it would be wrong to attribute all the accident on "assholery" and even these specific cases can be explained by other reasons that simply people wanting to do bad things, pressures, risky behavior, alcoohol addiction .;;
But the question I really want an answer for is: Outside of not being assholes, why do the rest of the people maintain a set of rules outside even of the watch of the system in the case of circulation?