Blake liked DADA well enough. As with all of his classes, he tended to do exceptionally well because he worked hard applied himself quite diligently to pretty much every task set before him. And he tended to surround himself with like-minded individuals, which wasn't that hard to do when one was sorted into Ravenclaw.
On this particular day, he felt good about the upcoming lesson, despite the nature of it at its core. Even though he had spent time mulling over the subject of Boggarts with housemate and good friend, Cait Morrigan, it wasn't exactly his favorite past time. Blake had his share of frightful experiences in his thirteen (almost fourteen) years of existence, but what he feared the most hinged on something he hoped would never happen.
Blake rarely spoke of the other members of his family to his classmates, since for the most part, it was hard to avoid any of his siblings at the school. The Knight reputation spoke for it self and needed little embellishment from him. If there was one member of the family that he might be tempted to mention at length (and in an affectionate manner), it would likely be his mother. She probably was the only one that he had a great deal in common with, but even that relationship was tenuous at times.
Overall, if pressed, Blake would talk about them, but the one member of his family that he absolutely refused to talk about was his father, Fitzgerald Knight.
Many would assume that the person Blake might fear the most would be his older brother, Callum. Or even collectively, his three brothers combined. But they all paled in comparison to the man of might that was their father. The patriarch of the Knight family was not a nice man. And while Blake respected him, he also greatly feared him.
One of the many benefits of being at Hogwarts for Blake was the fact that it placed considerable distance between himself and his father. And yet, he always felt there was an ever present eye watching over his every move, hence the Ravenclaw's caution when it came to being too open about his fondness for all things Muggles or being too friendly with too many Muggleborns or Half-breeds when his family members were around. His actions--for good or for bad--always managed to get back to their parents and Fitzgerald seemed to dwell on the negatives.
So far, Blake had not been privy to seeing the full extent of Fitzgerald Knight's wrath. He hoped he never would. But being the cause of it and also the target of it surely struck fear into his heart.
As Professor Mainwaring spoke about the goal in class, Blake snuck a glance towards the back of the room where his two brothers were sitting together. Part of him dreaded what was to come, but he quickly became determined to get through his part of the exercise as quickly as possible, so as not to give them any fodder to use later.
Clutching his pale colored wand, he fell in line behind a few other eager classmates towards the front. When it was his turn, he stepped forward with a bit of apprehension still at the fore and took a deep breath.
Blake watched as the Boggart took on his father's likeness, looming above him with darkened features and clear disapproval of everything he was and would ever be.
But as the fear swelled inside of him, so too did Blake's anger and his desire to overcome all of that. With another breath, he let the negative thoughts go and instead thought of a way his father could never hurt him or make him afraid.
Pointing his wand, he shouted, "Rikkulus!"
The Boggart shifted shape, immediately shrinking down towards the floor. Fitzgerald Knight shrank down to the size of a mouse, looking meek and frail and worried about his lack of size. It mirrored a scene from one of Blake's favorite Muggle cartoons, Tom and Jerry, in which the pesky cat ends up drinking a potion that causes him to shrink so that he is smaller than the Jerry. This allows for Jerry to have the easy opportunity to repay his nemesis for all the times he had been mistreated.
Certain that his brothers would hardly understand the significance of the whole occurrence, Blake stepped back and then turned to the Professor with a bright smile filled with relief.