^^ yeah, I locked up at home, on the front porch, about half the time with my roadbike. My mountian bike was sitting in the bushes to the side of the porch unlocked, for most of a year, but I cracked the deraillur in half, so it wasn't ridable anyways.
I can understand not locking your bike up at home, in a low bike-thievery neighborhood, especially if there's people coming in/out of your house a lot. but 5 years? wow... that's impressive it didn't get dissapeared before that.