What would 你 do if a 随意 person run in your bedroom and yelled "I command 你 to freak out, now!"

Pshh. Freak out? I am clearly superior to any 床, 床上 intruder!
I would command them to get out of my room before they fall prey to my death ray!

I would putch im freaking out!
and tell:

Where are 你 going 随意 person? I'm over here, in the living room and not in my bedroom.

"Who the hell are 你 yelling at in there? I'm in the dining room!"

Kick him/her in the shins and impaile the person with the uneccicarily sharp earrings I have on.

That depends -

If i'm awake and 阅读 a book i'd put one finger up to tell them to wait, finish my paragraph, carefully mark my place and tell them to eff off.
If i'm awake but not 阅读 i would 更多 likely freak out and scream at them and throw them out breaking one of their 识骨寻踪 in the process.
If the person who ran into my room woke my son he/she would be dead before he finished the sentance.
if i was alseep, i wouldn't do anything as nothing can wake me up after i've popped a few pills XD

I would say "Cool story bro" to him.

Probably freak out. Not because he told me to, but because there's nobody in my bedroom.
Then I'd sneak up behind him and hit him in the head with a skillet.

Me: *Grabs nearby stiletto heel to gouge their eyes out and glares*
Person: *Backs slowly away*

Say: "Dude! How the Hell did 你 get inside my coffin!"

I would say that I dont freak out I act RaNdOm

I'd watch him trip over all the 随意 shit I keep lying around in my room.

I would laugh and keep watching tv :p

Walk over to my katana that is safely behind Ryuu's cabinet and point it at him, and imitate 日本 from 黑塔利亚 saying "My sword shows no mercy for thieves!"

I'd probably freak out and throw stuff.
It works most of the time...

"Just.Wait.! I am working on a book report. If 你 want, 你 can get some soda 或者 果汁 from the fridge, but I swear, if 你 wake my mom 或者 her boyfriend up, I will kick.yo.ass."

I would say "who the hell are 你 to tell me to freak out in my own house. I demand 你 to get out of my house before I call the police!"

No way thats gonna happen! i am on the roof!