OK Duvel, Mishima was not liquid (elemental) mercury, so I was wrong about that. But... did you read the whole of the page you posted the link to? It says "Inhalation of elemental mercury vapors is the main cause of toxicity, as mercury is well absorbed by the lungs... After a large, one-time inhalation exposure of (elemental) mercury vapor, the lungs are the main target of mercury poisoning, although other symptoms develop as well. Symptoms may develop within a few hours and include chills, metallic taste, mouth sores, swollen gums, nausea, vomiting, abdominal pain, diarrhea, headache, weakness, confusion, shortness of breath, cough, chest tightness, bronchitis, pneumonia and kidney damage. A spill of a large amount of mercury (more than the amount of mercury in a household fever thermometer) can be dangerous to all members of the household including pets because of the mercury vapors in the air of the house. Most likely a hazardous material team will be required to do a professional clean up." Etc etc. Max was imagining a photo shoot at the site of a whole lakeful of the stuff. Swimming in it may be OK, but what about breathing while you're at it? And though not instantly lethal, the mouth sores, crapping and puking would have to be an element of the shoot!
I wish I hadn't written that... too late!