" writes:

Well, I'd suggest that for the next year or so a lot more money will be
saved by the Police, railway companies etc. in not having the clear up
after these two every time they feel like airbrushing a train or two.

Why do they have to spend money clearing up after them? Does 'well
done' graffiti actually do much harm? Some of it can be very artistic
and can add to the character of an area, and as far as trains are
concerned might even be considered to be preferable to the garish
colour schemes used by some TOCs.