Notwithstanding that Mr Quilp had a strong conviction to the contrary, founded on his recollection of having carefully taken it out, he was fain to admit that this was possible, and therefore went grumbling to the door where, sure enough, he found it.
Now, just as Mr Quilp laid his hand upon the lock, and saw with great astonishment that the fastenings were undone, the knocking came again with the most irritating violence, and the daylight which had been shining through the key-hole was intercepted on the outside by a human eye.

The dwarf was very much exasperated, and wanting somebody to wreak his ill-humour upon, determined to dart out suddenly, and favour Mrs Quilp with a gentle acknowledgment of her attention in making that hideous uproar.
With this view, he drew back the lock very silently and softly, and opening the door all at once, pounced out upon the person on the other side, who had at that moment raised the knocker for another application, and at whom the dwarf ran head first: throwing out his hands and feet together, and biting the air in the fulness of his malice.
So far, however, from rushing upon somebody who offered no resistance and implored his mercy, Mr Quilp was no sooner in the arms of the individual whom he had taken for his wife than he found himself complimented with two staggering blows on the head, and two more, of the same quality, in the chest; and closing with his assailant, such a shower of buffets rained down upon his person as sufficed to convince him that he was in skilful and experienced hands.

Nothing daunted by this reception, he clung tight to his opponent, and bit and hammered away with such good-will and heartiness, that it was at least a couple of minutes before he was dislodged.

Then, and not until then, Daniel Quilp found himself, all flushed and dishevelled, in the middle of the street, with Mr Richard Swiveller performing a kind of dance round him and requiring to know 'whether he wanted any more ?' 'There's plenty more of it at the same shop,' said Mr Swiveller, by turns advancing and retreating in a threatening attitude, 'a large and extensive assortment always on hand--country orders executed with promptitude and despatch--will you have a little more, Sir--don't say no, if you'd rather not.' 'I thought it was somebody else,' said Quilp, rubbing his shoulders, 'why didn't you say who you were ?' 'Why didn't you say who YOU were ?' returned Dick, 'instead of flying out of the house like a Bedlamite ?' 'It was you that--that knocked,' said the dwarf, getting up with a short groan, 'was it ?' 'Yes, I am the man,' replied Dick.

'That lady had begun when I came, but she knocked too soft, so I relieved her.' As he said this, he pointed towards Mrs Quilp, who stood trembling at a little distance.
'Humph!' muttered the dwarf, darting an angry look at his wife, 'I thought it was your fault! And you, sir--don't you know there has been somebody ill here, that you knock as if you'd beat the door down ?' 'Damme!' answered Dick, 'that's why I did it.