So to be clear I'd bought the diet, caffeine free varieties, plus other homemade fizzy stuff just so they're not missing out (yes I know about the sweetners but it's a one-off). So when a parent turns up with 40 cans of sugar loaded drinks and they all run to grab them before I've even noticed or had a chance to offer anything else... its very annoying! Cue spirited, cheeky kids turning into little vandals - tantrums and tummyaches galore... not an exaggeration.