A few years ago when I was on my way home from work is the only time I had to use 911. Was coming home on the back "country" roads (was about 30 miles to work) and at one part there was a few stop signs and a gas station. Coming up on the gas station, there was a minivan that was traveling in the same direction as me, but stopped right in front of the gas station. Just as I noticed it was stopped and something wasn't right, the lady gets out of the minivan and starts running down the road towards me, and at the same time I notice some flames under the van. See was panicking and at first I thought someone was still in the van, but then realized she was just worried about her purse still being in the van - yeah I'm not running in there for your purse, lady.
Because of that and the rather close proximity to the gas station, I stayed a ways back and called 911. Within a minute the fuel lines on the van bursted and the thing went up in flames rather quickly. Still waiting for the fire dept. and police, I turned my car around and went a bit further away. Fire dept. & police show up, me and a few other witnesses hang around and the cops come around and take statements etc.
Cop gets to me and I tell him I was the person who initially called 911 as I seen the flames start as the lady running from the van. He starts questioning me why she was stopped, did she hit anyone etc? I repeat what I saw, she was stopped, I see flames, she runs from van, no other cars were ever in front of her from what I saw (there was another stop sign about 50 yards up the road in front of her as well). Then he starts asking me if I hit her... wtf? I had a 2000 grand prix at the time that had a slight crack in the bumper down by one of the fog lights from before I owned it. I asked if it made any sense that I would call 911 and hang around for the police if that was the case. He kept pushing it like he was trying to crack a confession out of someone. I finally told him he had my info if he needed anything else, I had stuff to do, good-bye. As I was pulling off the shoulder in my car he made over obvious actions in my rear-view that he was writing down my license plate number... umm idiot you have my name, address, phone # etc.
Haven't used 911 since. I did see someone lose it in front of me on an off-ramp awhile after the above incident and go off the road down into the weeds - I kept driving. There were two other vehicles pulling over so they can deal with that BS.