Wear your glasses when trying to find a fresh shampoo bottle out of the cupboard. Tesco own brand kitchen cleaner isn't very good for the hair or scalp:-(
I've also done a similar trick at my daughters. I picked up a bottle of ex foliating body wash instead of shampoo. I thought this stuff's a bit gritty:-(
ha ha Many years ago my dad put vim under his arms after taken a bath, !! Alittle bit later he said to my mum that new talc smells ok but its a bit gritty! On going back to the bathroom to investigate, she found he had picked up the vim, At that time they had brought out new plastic bottles of vim and mum had decided to put sticky back plastic round it to make it look more decorative! LOL.