#1 it's very easy to bribe ( or threaten ) him into doing things , even if he really really doesn't want to.
#2 often seen clinging on to someone , even the people who've hurt him. not only does it ground him , but they also hate being alone.
#3 has the barest amounts of an education. he can read and count , but that's about it. the lab only teaches them what they think is important. they need both of those for certain tests.
#4 has a bad habit of staring at people. they don't blink while they do it , so it adds to the discomfort they're causing.
#5 bites at his fingers. used to bite his nails , but then he had them removed as a punishment , and now it hurts to mess with them. bites hard enough to make himself bleed. their fingers often have bandages around them because of this.
#6 they have a really high pain tolerance. it takes a lot to get them to react . some scientists find it fun to try and test this limit.
#7 has a singular stuffed animal , but they're not allowed to have it without supervision. it's not because they fear what he could do with it , but because he tore their previous one in the midst of an episode and proceeded to have a horrible breakdown. they prefer them in a state in which they'll listen without much of a fight , so they do what they can't prevent situations like that.
#8 he's crazed but sweet. he's somehow managed to maintain his empathy.
#9 likes to sit in corners. they usually put him in a position where they can see the whole room. this is how they're normally found when they're retrieved for a test. he rocks himself while in this position. sometimes he'll even hum.
#10 he gets overwhelmed when the voices get too loud. he covers his ears whenever they're alone , but that doesn't actually do anything besides ground them some. they'll panic if it gets to be too much. this usually leads to them crying.