Per 
Item #: SCP-5249
Object Class: Safe
Special Containment Procedures: SCP-5249 must be secure in a locked box at all times. The only time it is to be taken from containment is for secure testing by individuals of Security Clearance 2 or higher. Any contact with SCP-5249 (outside of testing or in the event of a breach) is strictly prohibited. The container is a 15 cm by 15 cm cooled tungsten box. An exterior locking system is used. The container is to be set in a locked room, with an armed guard and security cameras to ensure that the anomaly is not stolen from its containment.
Description: SCP-5249 is a dark red apple-like fruit with dark purple streaks. It is larger than an apple, but very similar. It was recovered at ████ House in late 19██. It was found next to the body of web designer, █████ ███████, who was on the floor with a smashed-in skull. On a table next to the corpse was SCP-5249 with a noticeable bloodstain on the wall behind it.
Testing found that on contact with SCP-5249, the individual will have the compulsion to rapidly smash their head against a surface with no hesitation. Coming close to SCP-5249 will make the individual feel this compulsion. If detained during this compulsion the individual will go into a manic state, screaming and clawing at their eyes. When set free again, the subject will continue smashing their head.
Through more tests, it was found that if the individual coming in contact with Anomaly 001 has tungsten between them and the subject, no effect will take place. Any other material has proven ineffective against the effects of the subject.
SCP-5249 is not only effective on humans. The effects have occurred on every animal tested so far, besides, weirdly, pigs, who's internal structure is very similar to that of humans.
Addendum:
Test 5249-1: A Class-D subject was asked to walk into a room with SCP-5249. The subject was commanded to hold the fruit in his hand. The subject seemed unwilling to do this task until he was threatened. The subject grabbed the Anomaly and appeared unaffected until about 30 seconds into the test, when the subject's pupils dilated to the point where it was difficult to make out the subject's irises. He then put the fruit on the table, calmly walked over to the wall, and leaned back before smashing his face into the wall. After doing this, the subject backed up and did it a second time. His nose was badly broken and was missing many teeth. Despite the injuries, the subject showed no sign of being in pain, and only continued. He eventually died 7 minutes and 34 seconds into the test from brain damage and hemorrhaging.
