As I've always understood it (and as the dictionary defines it), empathy is an ability to identify and understand somebody else's feelings, whereas sympathy is the ability to share their feelings. Looking at somebody crying and understanding that they are sad is empathy, feeling sad as a result of their sadness is…
I really hope that if someone breaks into my house and sees a bunch of cool gadgets and things that they'd look over the digital calendar bolted to the wall.