1) They are already extremely loyal to their master(s); 2) They are certainly capable of telling the secret to their master(s) after the charm is cast and are almost completely unable to betray them; ...
Could Hermione really free the Hogwarts house-elves with the little knitted hats she hides around Gryffindor Tower? ‘Why d’you wear that thing, Dobby?’ [Harry] asked curiously. ‘This, sir?’ said ...
Who owns the Hogwarts house-elves? ‘Well, whoever owns [Dobby] will be an old wizarding family, and they’ll be rich,’ said Fred. ‘Yeah, Mum’s always wishing we had a house-elf to do the ...
Can House-Elves do laundry without being freed? ‘Why d’you wear that thing, Dobby?’ [Harry] asked curiously. ‘This, sir?’ said Dobby, plucking at the pillowcase. ‘’Tis a mark of the house-elf’s ...
In J. K. Rowling's Harry Potter and the Chamber of Secrets, chapter 10, we have Harry keeping a firm hold on Dobby's wrist to stop him from hitting himself with the water jug again.… ...
How did Dobby the house-elf intercept Harry's mail during Harry's summer holiday between Philosopher's Stone and Chamber of Secrets? ‘See what it’s like here?’ [Harry] said. ‘See why I’ve got to ...