Just now there is a thread about an invention that you could easily give up. I have a question.

Tell me an invention (or more than one if you like) that never should have come to light.

Here are a few

Motorcycles (friend of a friend had an accident recently)
Cigarettes (probably killed more people than tornadoes and hurricanes combined)
Switchblade knives

alcoholic beverages

cigarettes are the worst. How many people have they killed.

cigarrettes and chew. I have a son who uses chewing tobacco. Icky.

(some) men?

Gunpowder.

Guns, swords, anything to harm another human being...

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?

alcoholic beverages
cigarettes
guns
weapons

Bras