I sometimes lack a little tact. But most of the time I choose the kill them with kindness thing because I LOVE to watch people squirm.... BUT after I told her no it's copyrighted and she is still being a pill, I would have told her to buy her own. Or hey, here's my heating bill for this month, let's trade! I would not be polite after trying to explain why this was wrong. She's just an acquaintence, who cares what she thinks. There's something else I would have said, but probably not very polite. ;)