What's wrong with this picture?

[alexpgp]

There is a government agency in the UK that calls itself the Greater Manchester Passenger Transport Executive (a name that evokes memories of early James Bond films, as the first "E" in SPECTRE stands for "Executive" in the apparently British sense of "organization," but I digress...)

It is the job of the GMPTE, ostensibly, to help make the city "work together," and to further that goal, it has commissioned a spiffy new consciousness-raising poster:


Try to figure out what happens if one attempts to turn one of the gears.

Cheers...

Photo nicked from Transport Blog; with a tip o' the hat to Samizdata.net