"Are you threatening me, sir?" he said, so loudly that passersby actually turned to stare.
"Yes, I am," said Mad-Eye, who seemed rather pleased that Uncle Vernon had grasped this fact so quickly.
"And do I look like the kind of man who can be intimidated?" barked Uncle Vernon.
"Well..." said Moody, pushing back his bowler hat to reveal his sinisterly revolving magical eye. Uncle Vernon leapt backward in horror and collided painfully with a luggage trolley. "Yes, I'd have to say you do, Dursley."
Listen to me, Potter. Your pal Diggory? By your age he could turn a whistle into a watch and have it sing you the time. Miss Delacour? She's as much a fairy princess as I am. As for Krum, his head may be filled with sawdust, but Karkaroff's is not.Alastor "Mad-Eye" Moody in Harry Potter and the Goblet of Fire
Don't put your wand there, boy! What if it ignited? Better wizards than you have lost buttocks, you know!Alastor "Mad-Eye" Moody in Harry Potter and the Order of the Phoenix
Avada Kedavra… the killing curse. There's no blocking it. Only one known person has ever survived it, and he's sitting right in front of me.Alastor "Mad-Eye" Moody in Harry Potter and the Goblet of Fire