I am glad he didn't kill anyone and Robin gets the blame for this. He should be in a coma until the start of Young Justice and is moved to the team but doesn't remember anything from before.
Robin will probably blame himself even more than Batman would. He already did in the Deathstroke incident. Both by coming underprepared and tricking David into this
I donât even think Batman has the willpower to stop from laughing under the influence of the fear toxin and Joker gas. As proven in canon, Batman has definitely been forced to laugh.
For some reason, I remember Scarecrow being as demented as the Joker, but not as... unpredictable as the Joker.
I'm really liking this version of him though. He's a lot more composed and driven to understanding fear instead of the monstrosity I'm used to.
This is the perfect time for him to fully remember both his lives and struggle with the fact that he is in a comic book world and has people he cares for but also that these people aren't or shouldn't be real