If the deceased is of Irish stock, you may be required to 'bring a bottle or two'.
This from the late comedian Dave Allen;
"A very important part of the Irish way of life is death. If anybody in the world dies, that's the end of it, they're dead. But in Ireland, when somebody dies, we lay 'em out and watch 'em for a couple of days. It's called a wake.
"It's great, it's a party, it's a send off. And the fellow is laid out on the table. And there's there's drinking and dancing, and all the food you can eat. And all your friends come from all over the place and they all stand around the 'wake' table with a glass in their hands, and they say, "Here's to your health."
"The terrible thing about dying in Ireland is that you miss your own wake. It's the best day of your life."