Some code I wrote in a drunken haze has been running continuously for 7 years with zero downtime - it was only meant to be temporary! It has zero comments, the

Some code I wrote in a drunken haze has been running continuously for 7 years with zero downtime - it was only meant to be temporary! It has zero comments, the code was inefficient, the variable names are things like "theThing" (it's the best I could do at the time) and "database" is just a series of text files carefully read/written to on the disk.