Severus’ favorite colors are a deep, navy blue or a dark, bottle green.
Severus is not a fancy cook, all potions jokes aside. He makes simple, filling meals when he remembers to do so when he is not at Hogwarts; while there he tends to eat fairly simply as well, finding that food heavy with creams and sugars tends to upset his stomach.
He actually greatly enjoys wizards chess.
While accomplished with the waltz, Severus generally gets older students to host these particular lessons for Slytherin and serves more as a verbal coach than a physical one. This has lead to confrontations however, held under the belief that Severus can’t dance, that have resulted in rather shocking displays to put that rumor to rest and get the students back on track with the lesson they felt their professor too inept to be supervising.
Severus is particularly kind to animals, generally out of sight of everyone, and is known to keep a small stash of treats on him for the various castle cats that wander about – including Mrs. Norris. This has resulted in him forming bonds with cats over the years, and often times a Slytherin or Hufflepuff student can find their missing feline sleeping in his office somewhere.
Severus once killed a student’s father. To this day he does not regret it and should similar circumstances present themselves he would do it again without hesitation.
Severus prefers coffee in the morning and tea throughout the rest of the day. He drinks his coffee black, and his tea with a spoon of honey.
During career counselling if a student professes having no notion what they want to do, Severus presents them a questionnaire he devised in his sixth year of teaching that helps them identify their best subjects and areas of interest, and through that will provide them pamphlets for positions that yield to that work, along with suggestions based on the results. It has taken a lot of the guess work out of this portion of the job and still grants the student options that are relevant to them.
Severus is dangerously adept with fiendfyre, but Lucas – the man who taught him – is far better. That said – yes, Severus was absolutely a pyromaniac in his youth.