Members of certain Tantric traditions quite willingly followed practices that were considered repugnant to society at large.
For example, in medieval India (c.6th century CE on), the Kapalikas (Kāpālikas) were a Tantric group that worshiped Shiva.
They especially revered Shiva in his ferocious form as Bhairava. It is commonly known in Hinduism (and Buddhism) that Bhairava likes to reside near cremation places and covers himself in ash (from the cremation fire). He uses a dog as his vehicle to get around