It's only happened to me twice, once during my military service when I was heading home for Christmas and once at work. I got help in both cases but I'd say the former was worst as the weather was quite nasty, snowing and quite cold.

In the middle lane of a busy motorway. Saved by a lorry-driver who got his hammer and banged the contacts. Sorted!

Flat battery???? or you mean a dead battery or flat tire?

at a motel in the middle of winter but jumper cables saved the day

In a not so nice part of the city, late at night after a music show.

Same place you get a dead tire ...

Engking lingo is confusing lol

On a roundabout

M1 and bloody snow too!

Anywhere when it is -40.