Well, the rat who set up a maternity ward in my loft didn't like radio 4 ;D ;D ;D ;D She's moved on now.
You could try kicking the bin hard, or hitting it with a spade, stand back in case they run out. Make sure there's no cooked food in there that they could be after for eating, otherwise it's just somewhere warm to sleep. If you use a trap use peanut butter, and if you take it away to release take it a LONG way away, they will try to return. Not sure about poison if you have a dog, I wouldn't.
But then there are so many rats around that we don't see, they;ve multiplied in the last few years. :o :o :o