There's
a certain black humor to the situation (Alvarez uses the belated arrival of a «Day 2» title card to underline how fast things got fucked), but also a charge of real - world resonance, extending beyond the boundaries of the experiment depicted to more ugly examples of group think and abuse of power.
Although the mental and physical problems from metal toxicity have escalated in recent years, our very language tacitly acknowledges the historic toxicity of
certain metals: «Mad as a hatter» from the Civil - War - era's crazed use of mercury sizing in hat manufacture, «gold fever» from the murderous greed of early prospectors, «lead poisoning» as
black humor for «getting shot,» and, more recently, «get - the - lead - out» exhortations from trainers who would have us exercise long and hard in order to sweat out toxins and melt excess fat.