Surely sub isn't the right word as you're not subtitling anything, merely translating. But I'd have said because you have less visual cues to go from. I\m just guessing though.
Le sigh, we have a toilet roll thief. Which is rather pathetic.
@Joonas- Apparently what was said was "Why are you doing the washing Mat, isn't that Claire's job?" Mat said we usually do it together, but as I was at work he was doing it. To which he was told in an unjoking way by both of them that 'I need training better.' If I wanted a relationship where I cooked, cleaned and acted like a slave I'd have never split with my ex. He did a fucking good job of it. :/