Unless I have missed something, the sheds have gravitated (pun intentional) to sack weights of 25 kg for most products. Strangely, my local council have started to replace all the 300mm slab /paviors pavements with the old sizes which are far more likely to lead to skeleto-muscular problems in the workers. It does strike me as an extravagant way to get rid of the chewing gum. I wonder how big the bung was.
John Schmitt