Hi there,
A few years ago when I was young, carefree and irresponsible

I manged to miss my last train home after nights out in London a few times.
Rather than hang around Victoria station until the first train home of the morning I'd get down to Gatwick and spend the rest of the night there. It was a fairly comonplace ocuurance with there being a few "worse for wear" people staggering off the train and heading off into the terminal building in search of another drink, something to statisfy the munchies, a coffee or somewhere to crash out for a couple of hours.
Gatwick is a much nicer place to do this compared to any London terminus!
Around 5:30am when the trains started you'd head back down to the platforms to figure out the way home.
Ah, glorious days which I'm now way to sensible to repeat
Jason