Stresses in a marriage and in family life, sometimes they're prompted by whatever is going on in the wider world as well as what's going on behind your door.

No matter how many frustrations come along, or how many problems arise, I never lose the feeling of how lucky I am. I'm so pleased to be doing a job that makes me laugh every day. I'm aware that it's a huge privilege.

I think that there's an idea in 2016 that if a woman doesn't have it all then she's lacking in some way, and I think that 'having it all' is the kid, the relationship and the career, and that seems horribly skewed. I get genuinely excited when I meet women - or men - who don't want to have children. It's refreshing and unusual and means they're not swayed by what society has told them, they're just listening to their own basic instincts. I love meeting people who are fulfilled by other things. I think, 'lucky old you' when I meet someone single.

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.

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.

I never felt like I had to rebel against my convent upbringing, because it was comparatively regular.

I love Sutton House in Clapton, a beautiful example of Tudor architecture.