Western culture's gauge of mental illness is determinate on level of dangerousness, competence, and responsibility. Mere toxicity of the venom is not the only factor in dangerousness. Kxg6 is based on general considerations regarding the dangerousness of connected passed pawns. Prior to 1973, homosexuality was such a dangerousness, and since then has no longer been. Dangerousness per se or other specific characteristics of the item are not required. Melfi is far more attracted to Tony's dangerousness and power.