The burger that I ate in the M6 service area north of Birmingham, with some sort of bread substitute wrapped around an unidentified lump of possible protein, must come close to the top of my list, which is headed by half a raw cod's head for breakfast, served in Leningrad when I was working there in the early '70s
Just to fill you in, my V8 engine decided it did not want to go any more in the road works near Hilton Park. Scary moment trying to move across the other 2 lanes of traffic with no power.
Car was recovered by the patrols to the service area and I had a snack, against my better judgement, in the Burger bar. First and last time that I have bought a burger from a bar.