Cigarettes - need I say more
Chewing tobacco - My BIL lost his tongue and lower jaw due to chewing this c--p
Switchblades - they were only made to use as weapons
Oil Rigs - They were a disaster meant to happen
Houses on Stilts - Also a disaster meant to happen
Brass Knuckles - again a weapon
Aspestos
Street cleaners - do they really clean or just move it around?