Why have you gone blue in the face, Tompkins?

Oh for God's sake:

Clip-on ties are replacing knotted school ties, as schools worry about health and safety worries, says a survey of school uniform suppliers.

The Schoolwear Association says 10 schools a week in the UK are switching, because of fears of ties getting caught in equipment or strangling pupils.

There are also claims that clip-on ties can stop pupils from customising the size of the knots in their ties.

"Worry about health and safety worries"? Now that is worrying.