We've lived in this house for a month. More mornings than not, when we come downstairs the hallway smells of what I can only describe as cat food (smells like dried cat food to me but husband swears it smells like tins). It is very definitely in the hallway and nowhere else, but we've never been able to trace it more specifically. A cat has lived in this house in the past but not for months, and I think I'd be able to tell if there were some secret stash of cat food somewhere.
Doesn't seem to be a specific correlation to the weather (we've had some scorchers but it's settled down to about 21 degrees now), although my husband "reckons" it's worse when it has rained overnight.
What the heck is it and/or how can I make it go away??
ETA: We ripped up the hall carpet and sanded and painted the floorboards. In case that might have something to do with it. But I smelled no cat food smell while I was doing this, and it does seem to be specific to the morning.