In my airing cupboard. I think it is a mouse. I noticed droppings when I went to get a fresh bar of soap this evening. I think it must be a new arrival as I never noticed it a few days ago and my dad went in there yesterday to check on the immersion heater and I'm sure he'd have noticed. So I'm wondering if it has arrived recently and come out to play last night. It seems to have just chewed the edges of two bars of soap, I couldn't see any attempts at chewing my toilet rolls, and everything else looks fine as well. Anyway I have cleared and cleaned the airing cupboard including taking out the small bit of carpet and binned that, so it's just floorboards now. I know duct tape won't stop mice, but for this evening I have duct taped every imaginable hole / gap I could find. I've also put talcum powder down on the floor. This should hopefully give me an indication of whether it is still in there and where it's coming from. I have scoured the rest of the house and can find no evidence of mice, so it seems to be just confined to the bathroom for now (where the airing cupboard is). So tomorrow after work will be a trip to B&Q to buy a mouse trap. I think I'll go the humane route otherwise I'll probably cry if I see a dead mouse in my airing cupboard, as I'm sad like that. I don't want to go the poison route as knowing my luck it will decompose under the floor boards and leave me with a pleasant smell. Any tips appreciated.