14°C, windy with sun

Could it be that I don’t, as previously thought, live alone? Could it be that these tiny pellets that I have found behind the fridge are left by visitors? Could it be that these visitors take the dog biscuits behind the fridge- where the dogs can’t possible get to, or put them? Do they go there just to eat the biscuits?

If that were so, those visitors could be mice. there certainly is a mousey smell there, or was until I washed it off with bleach. Mice that like dog biscuits enough to come into my house. There’s a thought.