well, i am sure i tried to buy 2 paracetamol and 1 ibuprofen and lady on till said cant buy 3 packs ? and i said well why are they 3 for £1 to which she just smiled. who makes up these rules.Energy drinks for example, have to be 21 to purchase? but can buy a double expresso at school canteen? i recently witnessed a young lad in a chemist trying to buy a tin of hairspray (obviously his mom had sent him) the cashier refused to serve him and he got upset and left the shop in tears.When i left the chemist i saw the lad explaining to his mom that the chemist wouldn’t serve him and she smacked him across the head!