Maybe a decent humanoid?
rating: 0+x

Item #: SCP-7596

Object Class: Euclid

Special Containment Procedures:

SCP-7596 is to be contained in a 12' x 12' x 6' box with 1' thick steel walls surrounding it. Human contact with it is to be short, and communication should be limited.
In the instance that it were to be put into an agitated or angered state, security should be prepared to keep SCP-7596 inside of or within close proximity to its cell. All non security SCP personnel should be moved away from its cell, with the exception of any personnel who have contributed to its agitated or angered status.
Any and all personnel who may have upset it are to be evacuated from the facility and moved away from the facility.

Description:

SCP-7596 is a 6' tall humanoid machine of average build, and with what appears to be an array of LED lights that expresses its mood covering its body. Its external steel-like armor has no visible scratches or dents anywhere. The majority of SCP-7596 is stained white, while most of the joints are stained a dark white color
SCP-7596 can experience 3 known "moods", in which it acts differently depending on its current mood. SCP-7596's neutral mood is shown by its lights being a pale white in color. While in this mood, it is docile and compliant, but only towards certain people. These people are often in places of authority, but it still is not consistent in its cooperation with staff.
If it is in its agitated mood, it will glow yellow and emit a low hum. While agitated it will not comply with SCP personnel and occasionally attacks those who come close to it. It particularly seems to enjoy attacking D-class, but it still does attack high ranking personnel. SCP-7596 often can become agitated when someone of lower rank attempts to make orders to it, or when anyone attempts to threaten and harass it. After around 6 hours of agitation, SCP-7596 will automatically return to its neutral state.
If actions that can agitate SCP-7596 continue it will enter its angered state, with its lights turning red to match. When angered, the humming will increase in volume and pitch, and it will actively seek out targets. The personnel that it targets most often are those who have agitated it, and SCP-7596 will mercilessly hunt its targets for about 6 hours, where it will return to its agitated state. Whilst angered, anything that touches the majority of SCP-7596 will experience severe burns or large chunks of flesh being ripped off where they made contact. This effect is much more powerful at its hands, where touching its hands leads to the victim shaking and vibrating uncontrollably for anywhere in between 3 to 9 seconds. After the shaking effect ends, the victim is often both thoroughly burned and partially liquified. Victims of this attack are reduced to pools of blood and other melted tissue next to a pile of severely burned remains.

Addendum 7596-1

SCP-7596 was able to break containment after several D-class personnel who were testing on it had angered it. It almost immediately killed both D-class. This was followed by melting the doors to its cell with its hands, breaching containment. 3 security personnel were subsequently murdered and SCP-7596 began wandering the facility, occasionally killing personnel that it saw. After 6 hours, SCP-7596 calmed down and was able to be recontained. 13 total personnel had died during this incident.