I suspect the relationship between a qualified chef and his knife is more like the relationship between a qualified minicab driver and his cab than that between a qualified violinist and his violin. Nevertheless, there are some lovely cars out there.
Are you suggesting minicab drivers habitually cut people up?
I am suggesting that they habitually cut up violinists.
You need to watch violinists, they can be vicious.
They can really saw a composition to pieces.