I started writing sketches with Dennis Kelly, who I ended up writing 'Pulling' with. We entered a BBC competition and did quite well, then started writing bits for other people's shows. You wheedle your way in, write pilots and eventually you end up writing a sitcom.

It's always uneven, love; it's unbalanced and it's obviously even worse when it comes to someone wanting to part from someone who isn't willing to. It's often feeling hurt that you've never felt before and you want somebody else to feel that pain and also not wanting to let go, because when you let go you've got to start living your life again and it consumes people.

I'm a massive scaredy cat. I'm scared of being in a fast car, I'm scared of being on a rollercoaster, I would never go skiing, I would never do anything that had the possibility of endangering my life in any way. I should get some therapy, really.

I think the best comedy is tragicomic. Yeah, I suppose if you were to look at everything I've done, there is a bit of a black streak through all of it. It's not deliberate: it's what makes me laugh, and there's a fine tradition of it, especially in Ireland.

Things change when you get to 40. I'm embarrassed even that I'm going through it. In a very morbid way, at 40 you become aware of how long you've been on Earth and you start to question what you're going to use the remaining time doing.

You've only got a short shelf-life as an actor, and I want to make the most of it while I can.

It kind of depresses me when people decide to move away. I get it, you want your kids to have somewhere to roam free or to recreate whatever your sort of childhood ideal was, but my kids are grand. I love LA because lifestyle wise, it's near the beach and mountains and it is great for kids but then it's a city built on an industry that, at the end of the day, is kind of facile.