So, what seems to be the problem?
It won't start.
I've tried everything.
It hasn't run out of petrol, has it?
No, the tank's full.
Well, it's probably a flat battery.
Have you got any jump leads?
Yep, but there was no one around to ask for help.
Well let's give it a go.
Listen, while you're here, the left-hand headlight's not working.
Have you changed the bulb?
Yes, I've put in a spare bulb.
It's probably a loose connection then, but let's get the engine started.