It was a Thursday and Bunny Lopes was performing her toilette while she waited for a kettle of water to boil for tea. She saw that it was a quarter to six and the doors to the Polish Hall opened at seven-thirty. It might be wise to eat something first so she wouldn’t have to choke down any store-bought cookies or tuna casseroles reheated for the night’s event. Last week the food had been a letdown.