Russia, over Ukraine, hand on their throat, continually punching a country that desperately tries to defend itself, red faced with rage shouting at the people standing around the fight and trying to help Ukraine from the sidelines:
"YOU DAMN WARMONGERS!" punch "ALL YOU WANT IS TO THREATEN ME!!" punch, punch crack "WHY CAN'T YOU JUST LEAVE ME ALONE?!!1!" punch
The heat is literally produced by oxidizing (burning) carbon that you then breathe out as carbondioxide.