Reminds me of this https://en.wikipedia.org/wiki/Lia_radiological_accident

If you ever find an inexplicably warm object in the middle of the snowy wilderness, don’t cuddle up with it no matter how tempting it may be.

The Lia radiological accident began on December 2, 2001, with the discovery of two orphan radiation sources near the Enguri Dam in Tsalenjikha District in the country of Georgia. Three villagers from Lia were unknowingly exposed. All three men were injured, one of whom eventually died. The accident was a result of unlabeled radioisotope thermoelectric generator (RTG) cores which had been improperly dismantled and left behind from the Soviet era.

They ate dinner and had a small amount of vodka, while remaining close to the sources. Despite the small amount of alcohol, they all vomited soon after consuming it, the first sign of acute radiation syndrome (ARS), about three hours after first exposure. Vomiting was severe and lasted through the night, leading to little sleep. The men used the sources to keep them warm through the night, positioning them against their backs,

Two days after exposure, on December 4, patient 2-MG visited a local doctor but did not mention the mysterious heating source, and the doctor assumed he was drunk.