some neighbours and I had rats last year, I went into the kitchen one morning and found one sitting on my worktop with a box of cereal in its front paws, I had a bowl of fruit on my kitchen table and it had taken a huge chunk out of an apple and kiwi fruit, also gnawed a wooden spoon, and a pastry brush, I had to bin everything it might have touched pulled out cooker cupboards and washing machine,and scrubbed everything. Called pest control who put boxes of poison down
there has been no sign of them since. It cost £48 for 3 visits.