People who have small children on airplanes... who pay no attention to them as they climb all over the seats and annoy the people sitting around them.
Invariably I sit behind a small child who spends the entire flight trying to play 'peek a boo' with me by popping up and down in his chair. And the parent just laughs and encourages it and smiles at me like their kid is the greatest thing that ever happened to me.
Don't get me wrong, I like kids. But...I have no interest in spending my flight time babysitting your brat. I don't necessarily think your kid is cute.
(This goes for just about anywhere kids are when the parents don't pay attention...)
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