What about office spoons? The CSIRO recently did some research on the disappearance of spoons. It appears that they will last longer if in a tea room used by like-minded people (a bunch of scientists) than if used by administrative staff (a bunch of clerks). The research started with a dozen spoons for each tea room and within a month or so all spoons were gone. The research was unable to come to any conclusion regarding where the spoons went however!