"One elderly gentleman, who has been working on his plot for two years, had his shed pushed over and smashed, all the tools were taken out and burned, there was absolutely nothing left - it's mindless, " he said.

BBC: Anger as vandals destroy Audley allotments

One of their primary technical tools is the point and figure chart, which uses Xs and Os to plot price moves in vertical boxes.

FORBES: Oversold In Autoland