Parking space at work. There's a concrete post marking the expansion joints, and as a result, there's extra room in those parking spots. I like to pull in tight to one side to avoid door dings (both incoming and outgoing) and aim for these spots whenever possible. As I backed into this spot, I checked the mirrors carefully to make sure I didn't hit the concrete post.
I didn't even have to move the mirror - which I could have - and managed to get the truck less than an inch from the post. I also didn't hit the concrete wall behind me, although to be fair that had more to do with knowing exactly where it was given the ~ 1' square pillar jutting out from it. Backing up - especially with another vehicle behind me - is one of the times I wish I had a camera.
Mandatory cameras are no replacement for paying effing attention. They're a poor substitute for knowing your vehicle. And unless they're broadcasting directly to smartphones, they will be unused by the people that need them the most. By snapping their royal fingers and decreeing that the peasants shall have backup cameras, they have done precisely ZERO to fix the problem, and instead just cost us extra money.
In other words, exactly what they do about everything else...
That is all.