Got any lettuce?

A rabbit goes into a butcher's and says, 'Got any lettuce?'

The butcher says, 'No, this is a butcher's. We don't sell lettuce.'

The next day, the rabbit goes in again and says, 'Got any lettuce?'

The butcher says, 'No, this is a butcher's. We don't sell lettuce.'

The next day, the rabbit goes in again and says, 'Got any lettuce?'

The butcher says, 'No, this is a butcher's, and if you come in and ask for lettuce again I'll nail your bunny ears to the wall.'

The next day, the rabbit goes in again and says, 'Got any nails?'

The butcher says, 'No' and the rabbit says . . .

'Got any lettuce?'