Dog dirt has long been an annoyance to residents across Keighley district when it’s left in parks, on pavements and canal towpaths.

Not only do people inadvertently trail the mess into their homes, there’s the potential health risk to children from animal-borne diseases like toxocariasis.

So full marks to the dog walkers of Long Lee and Thwaites Brow for picking up their pets’ deposits, bagging it and binning it.

But how galling it is when their efforts are wasted by the sort of mindless yobs who think it’s fun to rip open the bags and spread the mess around a children’s play area. Morons doesn’t go far enough to describe the sort of low-life characters who could perpetrate such a crime.

It beggars belief anyone would willingly put children’s lives at risk in this way. Here’s hoping vigilant residents, council officers or police catch them in the act so they can be properly punished for their idiocy.