After the discovery of an unsent teenage love letter, David Nadelberg began asking people online whether they knew anyone who wanted to share their hideously embarrassing childhood writings on stage. It went viral and Mortified was born. 15 years later, it's been a podcast, a stage show, a 2013 movie and now a Netflix show. There’s a Dublin Chapter of the movement and recently David was in town for a show. He spoke to Róisín Ingle about the teenage crush that spawned the movement, and lots more.