Final answer:
Bellingham's willingness to harm Curzon in 'Forge' is evident in his threat, "I will not hesitate to put you down like the mongrel you are if you cross me." This quote exemplifies the tension and potential for violence in their relationship.
Step-by-step explanation:
In the book Forge by Laurie Halse Anderson, there are explicit instances that suggest James Bellingham, also known as Bellingham, is a character capable of physical harm towards Curzon. One compelling quote that demonstrates Bellingham's willingness to harm Curzon is when Bellingham says, "I will not hesitate to put you down like the mongrel you are if you cross me." This quote clearly signifies the threat of violence Bellingham poses to Curzon and is an excellent example to use in an essay discussing the character dynamics and tensions within the novel.