Originally Posted by right-track

Here's what a Mancunian would do...turn up and set up your equipment like usual, wait your turn and then when you get up to play, explain to the audience that the venue owner has asked the band not to scream, but to play instrumental instead.
Then scream your bollocks off!
Even if you get kicked off, think of the bigger picture.
The amount of new people wanting to see you play again will double and it'll do your rep a world of good.
Far better than compromising your band.