When we emigrated to Australia from the UK in the early 80s my Mum was terrified of all creepy crawlies and then some genius  told her about the inevitable school headlice breakouts and occasionally WORMS!! She was so worried that she regularly de-liced and de-wormed all 4 of us kids even if we didn’t need it. We became so paranoid about getting worms from the obvious “if you pick your nose, you’ll get worms” stories etc that she would use it to her advantage. One day my brother got caught eating spoonfuls of sugar out of the jar and she off handedly said “stop it, it’ll give you worms”. Since that day none of us have sugar in anything and if anyone is making us a cuppa and offer sugar we all say “no thanks it gives you worms”. Perfectly normal to us, plus we’ve all got great teeth and don’t struggle with our weight.