Connor Swindells may be best known for his performance as Adam Groff in Sex Education, but his new role as SAS founder David Stirling in the BBC's SAS Rogue Heroes may take over that prized position. Here's a chat with the charming so-and-so that touches on what to expect from Sex Ed series 4 and how to best survive a desert shoot in the baking heat when sand gets absolutely everywhere. Top tip: turn the air con off. Seriously. Now you know.