Per 
Item#: 005
Object Class: Safe
Special Containment Procedures: On my desk, because it's safe.
Description: SCP-005-J seems to be a lie detector that is 5 feet tall and 3 feet wide. It comes with a heart monitoring system and a sweat monitoring system. Whenever people tell the truth the lie detector says are lying (if I steal the cookie from the cookie jar and make people take the lie detector test then they will be the ones to get in trouble, but I've never done that… before…).
Whenever SCP-005-J says something people always seem to think the lie detector is telling the truth. When personal tried to put a lie detector on SCP-005-J they failed miserably because SCP-005-J said that they LIED about wanting to put a lie detector on it (and the personal believed that they didn't want to put a lie detector on SCP-005-J. my brain hurts btw).
Addendum 1 SCP-005-J
Lie Detecting D-2931
Doctor L█████: Are you telling a lie right now?
D-2931: No
SCP-005-J: LIE
Doctor L█████: So you lied about telling the truth, is that correct.
D-2931: No.
SCP-005-J: LIE
Doctor L█████: So it is not correct that you lied about telling the truth? Do you always lie?
D-class: Yes.
SCP-005-J: Truth
Doctor L█████: Wait, if you always lied and you just told the truth, then you'd be lying. But if you were lying then you would be telling the truth that you always lied! THIS IS TOO MUCH FOR MY BRAIN TO HANDLE!!!!!
>END LOG<
Doctor L█████ was sent to get psychiatric help. He never recovered.
