Examine the incident in which Catherine and Heathcliff go to Thrushcross Grange and are attacked by the bulldog. Discuss the significance of this incident.

Chapter 6 is quite a key chapter in Wuthering Heights. In this chapter, Hindley is now the master of the heights, and he married Frances. It also begins Hindley's degradation to Heathcliff. Heathcliff has taken on role of narrator to Nelly, telling he and Catherine's adventures at Thrushcross Grange. After that Heathcliff was ordered to stay away from Catherine by Hindley because of the adventures at Thrushcross Grange. This incident has often focused upon the differences …

…assured me that Mr. Earnshaw should be informed of my behaviour, and, bidding me march directly, secured the door again." said Heathcliff. When he's back to the heights, he tells Nelly that The Linton has made a "distinction between Catherine, a young lady, and himself". This incident sows the seeds in the divisions between Catherine and Heathcliff. It seems to tell the readers that Heathcliff can never becomes a "gentleman". He's always different from Catherine.