Actually, the closest I’ve come to colliding with someone doing this shit is when I was riding my bike - on the correct side of the road - and suddenly encountered a cyclist (a mom towing her two kids on a trailer, no less) head-on coming the wrong way around a blind turn. I was barely able to avoid hitting her; if I’d been in a car going 25 mph I almost certainly would have hit her.
It’s just fucking stupid because it’s contrary to other drivers’ (and cyclists’) expectations and gives them virtually no chance of avoiding the situation or reacting correctly, and it also happens to be straight-up illegal.