So I'm tootling along the M4, doing about 70 in the middle lane when the engine decides to stop just like that. Manage to swerve onto the hard shoulder, bastard car won't restart.
Today I have decided
a) to forget my mobile
b) to wear the most horribly tight agonising shoes ever invented.
So off I trot to the emergency phone box thingy, give the nice lady my AA details. I slightly mishear her asking if I'm towing anything and think she's asking if I'm carrying anything, I say just my handbag, she says, you're towing a handbag madam 
Anyway I digress. A very nice man, a lot like Monty Don shows up, doesn't do the usual 30 second prod and then tow me to an overpriced garage, he actually spends an hour doing computer analysis printout stuff, tells me it needs a cam shaft sensor which will cost £35, fair enough. Then says he has a spare and will let me have it for free, fixes my car and follows me 20 miles home to make sure I get there safely.
AIBU to think that is bloody good service and I should somehow provide feedback (not mentioning free part as don't want him to get into trouble)