This is the day and age of cameras on police, cameras on bystanders, cameras on the streets, and cameras pretty much everywhere. Hypotheticals are not only unnecessary but counter productive. You can view practically endless footage at your leisure.
And these hypotheticals are part of the mental gymnastics I mentioned. This isn't to say that your hypotheticals have not happened, but if they do happen they represent an incredibly tiny fraction of all incidents - whereas you are implicitly suggesting they make up some meaningful percent of incidents. It's like somebody charged with breaking and entering who somehow genuinely thought he was getting into his own house after having forgot his keys. I'm sure that's probably happened, but that says absolutely nothing about the very near 100% of cases where this is not what happened.
And these hypotheticals are part of the mental gymnastics I mentioned. This isn't to say that your hypotheticals have not happened, but if they do happen they represent an incredibly tiny fraction of all incidents - whereas you are implicitly suggesting they make up some meaningful percent of incidents. It's like somebody charged with breaking and entering who somehow genuinely thought he was getting into his own house after having forgot his keys. I'm sure that's probably happened, but that says absolutely nothing about the very near 100% of cases where this is not what happened.