I am on a sofa in London.

Hello dear reader. Are you still there? It's me, Margaret.

I'm sat here next to my dear friends Carolan and Andy - I'm on more placements this week and next, and this week I'm staying with my old chums. It's like mildly popular new BBC television show The Bubble, except I'm being isolated from decent, cultured society.

Jokes. It's really strange being in London - I've not been into the centre, but I've already tasted the bittersweet tang of the commuter train, the leery bliss of the rammed bus. I kind of miss the place - I hated London during the winter, but she's beguiling in the spring.

It's the soundtrack too - the background hum, the traffic, the emergency vehicles, the aeroplanes, the helicopters. It's reassuring knowing there's that constant companion with you - I went to the countryside once, the silence was deafeningly uncomfortable.