You can't use your mobile phone, tablet, or laptop, no music and if you swearing audibly you'll be asked to leave. It sounds like school in a throwback to pre-digital communication age.
But it's a Sam Smith's pub where the decrees of what you can't do - including paying by debit or card (it's cash only) - are displayed clearly on the bar and on the walls.
I picked a warm spring day to visit the highly popular Sinclair's Oyster Bar in the shadow of Manchester Cathedral to see how rules were being applied and adhered to.
As it happened, I rocked up pretty early with just a handful of people populating the beer garden soaking up the Spring sunshine.
Read more on manchestereveningnews.co.uk