My worst fear has been realised, I accidentally cc'd someone in to an email!
Talking about person A to person B, and copied A in to the email. Nothing too catastrophic, but so unprofessional 
This does not suit my anxious personality and will be one of those moments that haunts me for years 
I think I've done enough damage control and have now set up my Gmail to have a 60 second undo/recall option....
Anybody else having a cringey day?!