I want you to imagine yourself in a scenario for a moment. You're a lawyer. A good lawyer, one that takes pride in fighting for "the little guy." Your best friend and law firm partner is an easygoing blind man. But now you find out that he also moonlights as a superhero vigilante. What do you do?
If your answer was "Give him a high five and buy the nearest liquor store out of beer," then good job, you're a true friend.
Foggy Nelson is no such friend. Foggy Nelson gets pouty and distressed, refusing to give his longtime compadre a little kudos for his a*s-kicking, justice-serving second job.
Prior to this discovery, Foggy was serviceable comic relief. Sure, his jokes were never really that funny and the actor behind the character (Elden Henson) could withstand a few more acting classes, but overall, he was a solid counterbalance to Matt Murdock.
But as soon as he found out his blind buddy was the vigilante responsible for cleaning up the streets and, ya know, keeping the city safe from terrible people, he suddenly turned into a total sourpuss and spent most episodes contorting his face into super punchable expressions.