I don't know how true it is but I've heard that a boxer's hands are considered lethal weapons. I'd imagine that it's true considering just how much training they have. I know in the ring they wear heavily padded cloves but it still looks like they're being hit by a train! So Dudely killing several DEs with his fists is very likely. I really enjoyed Dobby's pranks on the brainless bearded wonder blunder, the walking talking grease trap and the golem with it's snake. The prank on the snake was priceless! Maybe Dobby should've dressed Tommy-boy up like Santa while he slept. Or even Father Christmas with Dumbly's beard. As for the newest Des deciding to leave Tommy-boy's service, they must be smarter then the average DE. They at least decided his snakiness was out of his mind. Of course that presupposes that he ever had one to begin with. And he might have till the ol' brainless bearded wonder blunder decided to use him as his weapon. One must wonder because of the ol' brainless bearded wonder blunder's passion for working behind the scenes, did he really kill Grindelwald personally or simply claim the credit for it?