A single experiment log from an SCP i'm writing

Experiment XXXX-C

SCP-XXXX’s containment chamber is viewed through bulletproof observation glass and audio is transmitted between the containment and research staff via. Microphones on each side of the observations window. There is a metal edge covering SCP-XXXX from the research staffs view.

Security: Two guards are placed outside SCP-XXXX’s containment.

Procedures:

Subject A (D-25835, Caucasian male, age 34, no known mental abnormalities)
Subject B (D-13913, Caucasian male, age 39, no known mental abnormalities)

Both subjects will be placed inside SCP-XXXX’s containment and told to view SCP-XXXX. Additionally, both subjects are told that any violence will result in immediate termination.

[BEGIN LOG]

Subject A is told to remove the metal sheet covering SCP-XXXX. Subject complies and normal reaction to SCP-XXXX is observed. Subject B is then told to view SCP-XXXX. Subject B looks at SCP-XXXX and tries to remove subject A from SCP-XXXX. Subject A shoves subject B away and subject B replies to this by pushing subject A with much greater force. Subject A then grabs subject B and punches him in the stomach. (The thump of the punch is heard through the observation glass). Subject B stumbles back and proceeds to tackle Subject A, throwing him onto the ground. Subject A throws Subject B off and punches him on the side of the head. A loud Crunching sound is heard, and Subject B ceases all movement. (Subject B expired). The researchers order the guards to terminate Subject A and the testing is ended.

[END LOG]

Note: Subject B’s neck was snapped by the force of Subject A’s punch. It seems that subjects become extremely possessive of SCP-XXXX and if more than one subject is under the effects of SCP-XXXX they will fight to the death to do whatever it prompts them to.