Per 
SCP-4081 shortly before being contained
Item #: SCP-4081
Object Class: Euclid
Special Containment Procedures: SCP-4081 is to be kept in an antimony covered pen at all times due to its radioactivity. If SCP-4081 is let out of its pen, its radioactivity will spread and give any persons in its vicinity a radiation sickness. In case of a containment breach, persons in the area surrounding SCP-4081 will have to wear protective suits to avoid getting radiation sickness. Then, a group of 10 guards will pick up SCP-4081 in a non-threatening manner and put it back in its pen.
Description: SCP-4081 appears as a small, blue silky terrier with high amounts of radioactivity. SCP-4081 has the standard personality and intelligence of a dog, I.E being able to understand basic commands from humans, and being able to develop bonds with humans it knows. After many tests, it has been concluded that SCP-4081 loves to follow humans around whether they’re its friends or not. This kind of behavior has resulted in the death of many staff members. SCP-4081 does, however, show aggressive behavior towards other SCPs. In one instance, it tried to kill SCP-131 when it was bonding with a human that SCP-4081 knew. SCP-4081's attempt at killing SCP-131 did fail.
Test 2 - 3/██/20██
Subject: SCP-4081
Procedure: Retrieve a few of SCP-4081's cells and hairs
Results: Subject shown to be extremely radioactive
Analysis: Must stay in isolation at all times
