Am a programmer, with no real medical knowledge, but I almost laughed out loud in a theater watching a CPR scene once. The person was giving the tiniest little chest compressions you can imagine, standing straight up with their arms out straight in front of them and only really moving like, their forearms. To an adult recipient.
One time, driving back on the highway with some friends, the mid afternoon sky suddenly turned purple for a couple seconds. We all saw it.
I’ve never been able to find any explanation of what happened. Closest I’ve got is maybe a transformer exploded, but it didn’t make the news or anything.