Can't think of anything not allowed in my sewing room. All drinks must be in a caped container and placed on a trivet so I don't get water stains. Pets (cat and a Yorky) do wander in to tell me it's time to play or eat (again)...but they never bother anything at all. They seemed to know and respect that this is my space. Chocolate is always welcomed along with a roll of paper towels.