That brownish-black mess is called tar and no, its not something added to your cannabis or tobacco
feeling smoke smell at the entrance - predicts a quarrel with neighbors
a tryptamine alkaloid found in Pausinystalia johimbe ) Euphoriants [edit] Alcohol: "Euphoria, the feeling of well-being, has been reported during the early (1015 min) phase of alcohol consumption" (e.g., beer, wine or spirits) [120] Cannabis: Tetrahydrocannabinol, the main psychoactive ingredient in this plant, can have sedative and euphoric properties
You name it, they have it
This makes them successful in a large number of occupations, as widely diverse as engineering and tailoring, or hairdressing and piano playing