@2fd7551e and borrowing rho phi from here, I get a similar error

https://www.htmlhelp.com/reference/html40/entities/symbols.html

https://files.mastodon.social/media_attachments/files/111/172/447/591/458/471/original/038240d2cae845ee.png 

 @3bf21e9d just a silly joke. Not RF 

 @2fd7551e I have an "A" level in over thinking