Richmond Hill, Ontario, a suburb of Toronto, in 2013 banned the number “4” from new addresses because they thought Chinese people would be offended by it.
https://leeduigon.com/2014/01/18/canadian-town-bans-4/
The number “4” is still banned in Richmond Hill. In 2015 they also banned the national anthem, O, Canada. Excludes non-Canadians, don’t you know.
Read the original post to get a feel for their profound reasoning.