I've just had a Fab Colchester Adventure!
After throwing myself on the train with one minute to spare (without the luxury of a coffee to enjoy; which while we're on the subject is called a Palamino at Liverpool Street station, ie, what used to be my Bloody Awkward - espresso with a bit of hot milk) I sat feeling pleased with myself for making it, until I realised I was on the wrong train. So in order to avoid a hefty surcharge I had to get off at Colchester and wait for the right train. Luckily it was nearly lunch-time so although I wasn't optimistic I decided to try harder than the baked potato shop and found, to my delight, a kiosk selling hot salt-beef sandwiches (on really nice bread stuffed with pickles and mustard) and fresh watermelon and ginger juice, for under a tenner! Highly recommended. Don't know if he has a website but it's called Culver St Baristas. If I didn't live near Brick Lane where we get salt beef 24/7 I would deliberately get the wrong train just for this.