If this is for work, I would make sure about any municipal or building or work regulations about storing any sort of fuel at work before acting on any suggestions you get.

Besides the actual fire hazard, I mention this in particular with you since you said you're getting close to retirement. Maybe I'm being paranoid, but I would hate for something like this to be used as an excuse to terminate you, especialy if you're on someone's bad side (referring to your other post). A couple cans of sterno are about as dangerous as a couple cans of cat food sitting in your desk drawer, but anything can be blown out of proportion if someone tries, I guess.

One alternative approach that may give you more latitude is perhaps to store them in your car, if you drive to work and feel comfortable enough about your choice to leave it in the car.