what do you think might be a secret hobby of Kururu's that, if anyone found out he actually liked said hobby, his immediate reaction would be to start digging in the backyard to bury himself in an old shoebox pet hamster style?
I'm going to use your description as to mean "person feels disturbed"
Very disturbing (max level):
1. He likes to watch people in the shower (canon) Specifically Aki (He really likes Aki) ((He's a creep)) (((I can't defend him from this one... Only seen it happen once aka at his debut so it might be for shock value but idk if it happens again and also it's still freaky)))
2. He enjoys surveillance (canon) ((what is wrong with him))
3. He enjoys bathing in food (canon) ((he needs to be punt for wasting food wtf)
Disturbing if you're a specific kind of person (me)
4. He enjoys going through people's stuff (headcanon) (ex: diaries, secret sketchbooks, bags, especially anything with a lock, if he's not supposed to see it he already has)((think that one episode they all got kidnapped and dororo has to save them, kururu got caught by opening a box that said do not open))(((this is especially bad for me, the guy with at least 15 pages of kururu in my sketchbook)))
Disturbing if you're normal:
5. If you've ever seen that one tweet where a gal said she dated someone who had a whole system tracking her dressing habits so they can match and said person always knew what she was gonna wear before she wore it, that person is kururu but he does it on a bigger scale and if we're talking poly then on multiple people too (headcanon) ((I think having a mental database of the Pattens of his loved one's everyday lives is his act of love but it might come of as freaky)) (((not to me though he should go ahead and psychoanalyze my subconscious decisions any time)))
Erm, hi, future Charlie here, I misunderstood the question and the listed above would not make kururu feel ashamed or Embarrassed, but rather make the other person in question feel disturbed. Here's the REAL answer below
From most to least Embarrassing:
I think that kururu like pets but he's not ready to commit to one so he plays taking care of pets mobile games and they always die because he gets bored and abandons them. I like to think he also thinks koneko is cute like giroro and dororo do.
I agree with @luckythefox135 that kururu would feel embarrassed if anyone knew he enjoys baking. He's got the freak Persona and anything that sounds normal and mundane would go against it so he tends to hide it.
I also think he enjoys critiquing art, art has a lot of basis in science like anatomy and gravity and mass and how colors and substances interact together, things that come easy for a genius like him, but he wouldn't admit to observing and analyzing an art piece like a rich snob, that's not his vibe! He would be great at art if he tried but I assume he didn't yet
andulkaphoto
theartofmadeline
titsay
jbbartram-illu