Just discovered this theatre group while roaming the guardian theatre blog. have a look at uninvited guests and there youtube here
They formed in Bristol in 1998 and are funded by Arnolfini. All very close to home. There latest peice was ‘Love letters straight from the heart’ funded by Bac Scratch and Arnolfini and was a performance of the audiences faviourite loves songs in a radio broacast.
I would like to go see some of their work because their style of participatory performance is a form i would like to work in.