The poison, bile and vitriol of Scottish nationalism was in full view in Perth as the Tory candidates and Tory members arrived for their hustings to be greeted by disgusting and repulsive behaviour (spitting and egg throwing) and insulting use of language (“Union will `never ever’ end, says Liz Truss”, The Herald, August 17). What an utter embarrassment to our whole nation. God forbid Ms Sturgeon gets her wish for another referendum. Then what lies ahead? Our country is slipping ever further into the sewer of nationalist politics and countries around the world must wonder what is happening to our once great, diverse and accommodating nation. Richard Allison, Edinburgh.