Through The Looking Glass by Lewis Carroll Chapter 8 Page 8

a very good bee-hive,’ the Knight said in a discontented tone, ‘one of the best kind. But not a single bee has come near it yet. And the other thing is a mouse-trap. I suppose the mice keep the bees out — or the bees keep the mice out, I don’t know which.’

‘I was wondering what the mouse-trap was for,’ said Alice. ‘It isn’t very likely there would be any mice on the horse’s back.’

‘Not very likely, perhaps,’ said the Knight: ‘but if they do come, I don’t choose to have them running all about.’

‘You see,’ he went on after a pause, ‘it’s as well to be provided for everything. That’s the reason the horse has all those anklets round his feet.’