Manholes Mingle With Man Holes

Is it just us or does the visual in this Chinese open manhole awareness campaign connote something relating to an entirely different sort of man hole? Apparently, the Chinese like to steal manhole covers. Why we know not but it seems the plight is so severe, an ad campaign is needed to urge caution to those who find themselves near manholes of a certain size. Not that caution should be thrown to the wind when entering much smaller versions of the man hole.