Hamsters and guinea pigs are very fond of it for building nests. Though keep an eye on them, I wouldn't put it past one or two trying to steal your identity.
If you hate your neighbours, put it in their garden on a windy night. It's a ******* to get rid of once it gets wet from the grass . . . . .
So in a carrier bag or not? Btw Mr C, I do have 2 hamsters but I've got plenty of bedding for them. So I think I'll avoid the risk of letting them steal my details!