Of course, it’s very hard to convict anyone because no Muggle would admit their key keeps shrinking - they’ll insist they just keep losing it

Of course, it’s very hard to convict anyone because no Muggle would admit their key keeps shrinking - they’ll insist they just keep losing it. Bless them, they’ll go to any lengths to ignore magic, even if it’s staring them in the face.

J. K. Rowling, Harry Potter and the Chamber of Secrets