Nothing to do with parkour, skateboards or bicycles but the practice of standing in a wheeled bin, holding the rim and jumping up and down as if on a particularly rigid trampoline in order to compress rubbish and recover space for more rubbish. I had not observed this behaviour until a blended family of chavs recently moved nearby. Today I noticed this behaviour from a family long established in the neighbourhood Have you notice the spread of this or other unseemly and unusual behaviours? Is covid-19 or the stress of "lockdown" responsible for some kind of widespread cognitive or behavioural collapse? Poll above, thanks.