16) Roy Mustang rues the day that some idiot brought a chalkboard into his office and decided to leave it there. Not only did it make him twitchy from the fact that someone had been in his office when he wasn't, it also inadvertently gave Fullmetal an Ultimate Weapon.
He would never forget the nearly-crazed grin on the boy's face when he realized that the only sound more painful than fingernails on a chalkboard was metal fingers on a chalkboard.
17) [Animeverse] After so many years of the Colonel sending him off on crazy, nearly suicidal missions, he couldn't believe it when Mustang gave an ardent argument for why Ed should not be sent to Lior. The teenager fumed. How dare the jerk deem him old enough to be killed in some obscure, far-away town by a mad rogue alchemist, but not old enough to be a scout in order to save a city that he had an obligation to save? Did he think that being all fatherly and pretending to care about his wellbeing would make Ed roll over like a good little military dog?
"I'm trying to protect you" rang in his ears as he went to Colonel Archer instead, and he told himself that the guiltiness wading in the pit of his stomach had nothing to do with it.
18) Roy was nothing if not inquiring. He needed to know exactly what was going on and who was doing what, because he was a (control freak) strategist. He had a natural, perfectly normal need to know everything about everything. If answers evaded him, Roy only pursued them further. And one of those answers was the reason why in the world Edward Elric wore a hooded red coat if he never used the hood. Now, any normal person would, aside from not having the question obsess him for days on end at all, simply ask the person. But not Roy. Instead he waited for the perfect time and tackled the alchemist ("Wha—?" "AHA!"), forcing the hood over the blonde's head. It fell over half of the teenager's face, leaving only his mouth, which was halfway to a furious rant already.
"Oh," said Roy.
"WHO ARE YOU CALLING SO SHORT HE COULD SKATE ON AN ICECUBE??"
And that was the end of that. The entire staff was deaf for a week, but at least now Roy could concentrate on his—ha ha—paperwork.
19) The day that Ed learned about the Flame Alchemist's little weakness, he stood grinning outside the Colonel's window for an hour in the rain, just to annoy him.
20) The main difference between how Colonel Mustang treats his staff and how he treats Major Edward Elric is that he knows that his staff will take a fall for him, no matter how hard. In exchange, he will take a fall for them. Edward will never let his commanding officer do anything so idiotic for him. In exchange, Roy keeps himself safe.