Harry Potter was able to talk to a boa constrictor in the reptile room at the zoo on Dudley’s birthday. The boa talked about how he‘d never been to Brazil. When dudley and his friend came over to see what Harry was doing, they pushed Harry, and Harry involuntarily made the glasss of the boa’s exhibit disappear because of his strong wizard emotions, freeing the boa.
Bob Ewell is the antagonist.
Euphemism. As "he is all thumbs" is a polite way to say he is clumsy (not being offensive) hence it comes under euphemism.
