Not a usual question right? I agree. But let's talk.
Ever heard of castor beans? From what I understood it's basically a type of plant that has Ricin in it. Ricin is a highly toxic, naturally occurring lectin produced in the seeds of the castor oil plant.
Most acute poisoning episodes in humans are the result of oral ingestion of castor beans, 5–20 of which could prove fatal to an adult. Victims often manifest nausea, diarrhea, fast heart rate, low blood pressure, and seizures persisting for up to a week.
The United States investigated ricin for its military potential during World War I. At that time it was being considered for use either as a toxic dust or as a coating for bullets and shrapnel.
How I found out about this?
Believe it or not I found out about it in the series Breaking Bad.