It did the wrong thing, following a pattern it established when it responded to the Jimmy Ling takeovers.

FORBES: Magazine Article

So it seems that if it gets locked into the wrong position, with a pattern of large waves, heavy rain is the result.

BBC: Why, oh why, does it keep raining?

When Sir Mervyn King spoke of the "zig-zag" pattern we could expect in 2012, he wasn't wrong.

BBC: Britain's zig-zag economy