I've been invited to a Sedar dinner tonight by a good friend of mine. The invite specifically said "no suits, no ties." This kind of thing drives me crazy, as I naturally feel more comfortable wearing a suit to a dinner party/event. I decided to go with a light blue Turnbull dress shirt with sleeves rolled up and top two buttons undone, black Ferragamo belt, charcoal Incotex trousers, black silk hose and black Gucci loafers. Will this be appropriate, given the "casual" emphasis? I don't want to look disrespectful. I'm a non-practising Muslim, and I'm not familiar with religious ceremonies of any kind, let alone Passover. Help.