You can tell the exact mental state of Dick Grayson based on the music he plays in the car
His entire family monitors his listening habits, and if it's anything but things from the list of genres and artists that Dick normally likes while provably mentally stable, they get concerned.
Tim, texting the group chat without Dick in it: Hey, guys, just needed to let y'all know that Dick picked me up today, and he put on an NF song in the car.
Barbara: Fuck, he's depressed.
Barbara: No, like--more than usual.
Jason: Y'all, I'm with him rn and he's blasting S&M in the training room. One of you bitches--and I will find out who--triggered some body image issues, and now he's sexualizing himself to cope.
Tim: Did one of you guys call him ugly or smth???
Steph: I would never. I'm not a mean person, unlike you guys.
Damian: Why did you immediately assume it was one of us?
Jason: Because y'all are terrible people.
Tim: I'm not taking this from a literal gang leader.
Jason: But I admit, that is a bit of a jump on my part. It could've been any of Dick's trash friends that he, for some reason, keeps around, so that's on me.
Cass: Monitor him so he doesn't do anything drastic.
Barbara: Let me know if he starts compulsively thinking about becoming a stripper.
Jason: If that happens, there's no saving him.
After Dick returns from Spyral.
Duke: Now this just might be me, but I don't think I ever pegged Dick as a metalhead before he went off to work for Spyral.
Tim: Don't tell me he's listening to SOAD.
Duke: Oh, yeah, it's that.
Duke: What does that mean???
Barbara: He's self-destructive.
Steph: Isn't he normally?
Barbara: No, like--I mean yes, but more explosively.
Jason: His main goal is to blow up...
Steph: aND THEN ACT LIKE HE DON'T KNOW NOBODY
Barbara: This is serious.
Steph: He's listening to vocaloid. That's....so odd??? @Damian did you have anything to do with this?
Damian: The answer to this question is of high importance: what song is it?
Steph: Do you think I can speak Japanese??
Steph: He says it's "Assassin Princess" by Mitchie M.
Tim: Hold on lemme listen to this shit
Damian: It's a good song.
Jason: Okay, but what does that tell us?
Damian: It's not a song I ever played for him.
Jason: So you're telling me he's listening to vocaloid independent of you?
Damian: It would appear so.
Tim: The song's about a spy and her partner murdering her ex-boyfriend who betrayed her.
Steph: He's feeling vengeful.
Jason: Oh, that's really bad.
Cass: He's playing One Direction.
Barbara: Honestly?? Chances are, he's fine.
Duke: Agreed. He's playing "What Makes You Beautiful", so I doubt it's anything.
Duke: Now if he starts playing shit from their solo careers, we have a problem.