Dezman said..Hoped you cleaned it first

Nah, you can get mince-cutting blades for 'em. Make sure you get the one for embedded nails too, otherwise it will dull the blade

I love recipros. Good blades are not cheap, but sometimes they can do something you can't do any other way, or... have to do it by hand...
My latest 'I'm glad I have that', is a lithium ion impact driver. The thing will pull screws into wood and out the other side if you keep going. You have to be careful you don't round over the screw heads, but otherwise its great. Please note, do not try and insert footstrap screws with one unless you want to learn how to remove broken screws...

The next best thing I have stocked up on recently is step drills. I love them. You can get such a clean hole and its easy.