O&S (meme) - leaf fall, according to mac

Daily Mail's cartoonist MAC capitalising on the leaves on the line problem in 1991.

copied for fair comment purposes.

[BR and then eventually Network Rail began running RHTT services - Rail Head Treatment Trains - to control the greasy mess that oil and crushed leaves form on the rail head. Another cure is not to have overhanging trees, but the wind does blow leaves about a bit].