This explains a lot. Wife and I are sensitive. One cube of fat in the skillet tells the tale. Boars with the funk knock us back several feet in short order.They say about 25% of people don't taste/smell boar taint, so if you've never tasted it you're probably immune.
From Wikipedia:
Boar taint is caused by the accumulation of two compounds – androstenone and skatole – in the fat of male pigs. Androstenone (a male pheromone) is produced in the testes as male pigs reach puberty and gives the meat a urine or sweat flavour, while skatole (a byproduct of intestinal bacteria, or bacterial metabolite of the amino acid tryptophan) is produced in both male and female pigs and gives the meat a 'fecal' flavour. However, levels are much higher in intact boars, because testicular steroids inhibit its breakdown by the liver. As a result, skatole accumulates in the fat of male pigs as they mature.