I once saw a kid on Dr Phil, who's behaviour was the result of too much cuddling and reassurance...
But seriously... this kid would have a big whinge and cry every time he had to do anything like ie. putting his shoes on! And his Mum would give him a big cuddle every single time he cried and acted like that... which was really just feeding the problem more and more. But that was a very extreme case.

I am all for cuddles... I can never give my little boy enough either!!