I screamed!!
Some gardeners and people who adore animals always say that rats are all around us and if in the garden they won't necessarily come indoors but I don't believe them. 
I would contact environmental health.
Another thing you could do is remove anything attractive in your own garden such as piles of logs or rough areas where they may be nesting. Rats don't like to be disturbed. Never put cooked food on your compost heap.
ALPHABETICAL FOOD AND DRINK (Jan 26)
