The person who took this device home took an enormous risk. This is a ‘camera’, a radiography source. It is a stainless steel container filled with depleted Uranium (DU).
The DU, while somewhat naturally radioactive, is actually the shielding for the extremely radioactive source that is stored inside. Most commonly, the source consists of up to 100 curies of Iridium-192.
The dose rates on contact with this source, while not immediately dangerous to life, are more than high enough to cause grave physical damage and illness in a very short period of time.
There are numerous incidents on record of these sources not being stored properly in the camera or actually becoming detached and loose.
Thankfully, this source seems to have remained inside the shield and the shield case intact.
It depends. If you noticed the label on the case, the I.D. of the contents was scratched off. I know plutonium throws off alpha particles. Those can be washed off your skin. There are problems when ingested. Beta ones also from various metals. Remember that Ukrainian politician that got poisoned?
The guy that picked up that case needs to be monitored in a hospital. If he made any food with dirty hands, he might need iodine and a blood transfusion.