If I have a skill of any sort – and, over the years, commissioning editors, comedy audiences and casting directors have offered thrillingly varied feedback on this topic – it’s in maintaining long-term friendships. I have a group of schoolmates who’ve known each other since we were 11, and all remain in close, regular contact. We are one another’s shoulders to cry on, voices of encouragement and moral support, and, whenever we can overcome the mounting administrative logistics of adult life, drinking companions.