I'm working on a project that uses some modules that others have created. Coming from more of an OO background somebody dumping tons of global variables on me gives me the creeps. Although I know exactly which variables this guy makes are global right now... there is nothing stopping somebody from coming in and dumping all over my variables in the future.

I don't really feel the need to go about fixing all of the offending code, but I would like to somehow give myself a little more protection before something gives me a good bite, especially since some people here are well known for changing business critical code without telling anybody and then it takes a day to figure out who did it.

I think I recall reading about a perl module that could do something like this and I will certainly go look for it right now, but I was wondering what other options I may have to protect myself.

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