Sadomaskochism
Deriving gratification, sexual or otherwise, from exposing one's naked facial orifices, flirting with the risk to self and others of suffering, pain and death. Refusing to wear a mask in public, during the COVID-19 pandemic. Sadism and Maskochism combined.
Knowing he might be infecting other people, or that he might get infected, he strode barefaced into the crowd, feeling the thrill of public nakedness, thrilled by his sadomaskochism.