We have a chav's gathering letting off display fireworks in the cul-de-sac. I would never leave my buns or pigs outside. One year we had animals in every room, including 3 bathrooms, landing and hall! It was hard work bringing them all in, having 2 sets of trays per lot to clean, shipping them back out each morning! This year we'll have 3 pens in the lounge, and the house buns will have the tv or radio in each room, curtains closed, lights on! I nearly had a heart attack last weekend when a firework went off whilst I was out with the outdoor buns, so I really wouldn't risk them suffering all night for 2 weeks. They have a 10 x 5 x 10 foot play house-with curtains, hidey holes and insulation-but still not risking leaving them out. The joys of fireworks eh!