I heard of a story that a Drum-drive started walking until it touted a table (over night). There is also another story i think from DEC, that there was a Compa

I heard of a story that a Drum-drive started walking until it touted a table (over night). There is also another story i think from DEC, that there was a Company who had like 10x more head-crashes (always on the same day), bit later they found out is was the Lorry who delivered goods one floor below.