On a flight the other day and a child of about 5 was having total meltdown and was given a baby bottle with Coca-Cola to calm them! The parents had bottles of coke with them to top it up!
I think child was ND, but regardless of that, why would anyone give that to a 5-year old child??? I try not to judge other parents and my own DC aren't strangers to sugar but cola is not allowed. The caffeine and sugar would surely make meltdowns even worse, not to mention the effect on teeth.