Oh dear, Susanne. That's such a funny story
When I lived with cats, they would often bring live 'presents' into the house. I used to trap them and take them for a nice car ride to live in Hamsterley Forest about 5 miles away but one dear little thing took up residence in the drawer under the draining board and was there for months. It eventually succumbed to the temptation of a piece of chocolate biscuit but it taught me to keep all food in mouseproof containers and it's become a habit.