enfield presents mr Hyde's violence as disturbingly casual highlighting the duality. snd moral corruption in the novella
evidence
the oxymoron "trampled calmly* juxtapose violence with serenity creating a disturbing image of a man who can commit cruelty without emotional reaction and that fact it was a child highlights this
evidence 2
the verb trampeled is brutal and evokes animalistic lack of control while calmly implies deliberatedetatchment
context
victorian society placed great emphasis on civility and moral restraint hyde's calm voilence mocks this superficial thinking linking to repressed desires breaking free
writers purpose
stevenson seeks to expose the hidden depravity of man challenging the victorian idea of man