@Treesinmygarden too:
Well, since we're being all serious instead of taking my comment in the light-hearted way it was meant, I now realise, on reflection, how incredibly selfish the stockpilers were. Yes, maybe people have bowel issues....and couldn't get any loo roll because others had swiped it all. There is no excuse, because running out of loo roll isn't life-threating. There's kitchen roll, newspaper, and multiple washing options. Wipe with a wet washable cloth, the bath, the shower, rinse with a jug, and more.
If nobody had stockpiled, everyone could have bought a pack at their weekly shop and no one would run out. But when people begin to stockpile, it creates a domino effect, because if some stockpile then everyone else has to as well, in order to be sure of getting some.
When I shopped, I took only what I needed for myself, such as one loaf of bread, even though the shop wasn't sure of their deliveries.