I know they aren't made of copper, but (Score 1)

anyone read this the other day?
"Charles Bull recently woke to the overwhelming smell of gas in his house. It was a neighbour who noticed that the copper pipes that supplied the house with gas had been removed." http://news.bbc.co.uk/1/hi/uk/6207410.stm

i think the moral is "don't use copper if you can help it"