Every time I have a protracted ding-dong with a big organisation, I put in a request under data protection law to see what they’ve been saying about me behind my back.

Anyone can do this. If you get into a row with a charity after complaining they’ve put your direct debit up without telling you, for example, you could then do a subject access request (SAR), asking them to send you a copy of anything mentioning you in their files, and they would send you back loads of emails in which various people in their offices discussed how to handle your...