Salt and pepper emergency

Most days at work i get my lunch in the canteen and bring it back to my office to eat it. On the way out of the canteen i stop to pick up some serviettes, a knife and fork and some salt and pepper sachets.
I don't know why i get salt and pepper every time, because i have salt and pepper in my office from previous trips to the canteen. I have loads in there, waiting to be used. Maybe i have some kind of fear that i will run out of condiments or something, i don't know. But i have been trying to think of alternative uses for it, in an attempt to justify the stockpiling.
But i cannot think of any. While salt can be used for various fabric dyeing applications, and is a great tool for the killing of slugs, i cannot think of any use for it within an office-type scenario. The use of pepper is even more limited.