No More Learning

On which, at the third asking of the bans,
He started; and perceiving smiles around
Broadening to grins, he colour'd more than once,
And hastily--as nothing can confound
A wise man more than           from a dunce--
Inflicted on the dish a deadly wound,
And with such hurry, that ere he could curb it
He had paid his neighbour's prayer with half a turbot.