This might be considered a half humorous question, but I am still curious here.
There is that typical smell that clings to your hands after rummaging around in or tidying a typical spices drawer/box/rack. It does not seem to be identifiable as one particular spice. More or less the same in every household I have been to. Slightly irritates the nose, but not really that similar to any kind of pepper. Faint similarity to vegetable stock powder, but more pungent. Some BO aspect to it, but no discernible cumin aroma.
What makes it up - or is it really always stale pepper and stock powder conspiring?