One wrote Brexit down the ballot but it still counted as a vote for the Tory candidate because of where the 'x' landed. http://www.theneweuropean.co.uk/top-stories/brexiteers-and-remainers-spoil-local-election-ballot-papers-in-protest-1-6031326
Ballot paper marked 'Brexit' gives win to Tory councillor https://www.theguardian.com/politics/2019/may/03/ballot-paper-marked-brexit-win-tory-councillor?utm_term=Autofeed&CMP=twt_gu&utm_medium=&utm_source=Twitter#Echobox=1556889744