Many parents and teachers have become irritated to the point of distraction at the way the weed-style growth of 'like' has spread through the idiom of the young. And it's true that in some cases the term has become simultaneously a crutch and a tic, driving out the rest of the vocabulary as candy expels vegetables.
You know, you can make a small mistake in language or etiquette in Britain, or you could when I was younger, and really be made to feel it, and it's the flick of a lash, but it would sting, and especially at school where there's not much privacy, and so on. You could, yes, undoubtedly be made to feel crushed.
When Caroline Kennedy managed to say 'you know' more than 200 times in an interview with the New York 'Daily News,' and on 130 occasions while talking to 'The New York Times' during her uninspired attempt to become a hereditary senator, she proved, among other things, that she was (a) middle-aged and (b) middle class.