On this day 7th September in 1978 Георги Иванов Марков, a Bulgarian living in London and working for BBC World Service was stabbed in the back of the leg by a James Bond inspired weapon: an umbrella that delivered a fatal dose of ricin. Georgi Markov died three days later in hospital. This was a decade before the fall of the Berlin Wall and the Cold War was at its height. Markov was a satirist who exposed the Bulgarian government and their masters in the Kremlin to ridicule, which is often a more effective weapon in a propaganda war than bullets. If you pissed off the Bulgarian government they'd send an assassin after you with (probably) the help of the KGB.
The rosary pea Abrus precatorius, produces another RIP called Abrin, which is between 5-10x more toxic by inhalation than ricin. Abrus is a true leguminous plant related to peas, beans and the locust tree but the Castor Oil plant Ricinus communis is not, belonging to the Euphorbiaceae which toaxon includes rubber Hevea brasiliensis. poinsettia Euphorbia pulcherrima, and cassava Manihot esculenta. The common name rosary pea comes from the fact that these bright red robust seeds are handy to make rosaries, to fill maraccas and other folksy uses. You want to be real careful not to tell your beads when you have a cut on your fingers, because you could be up at the Pearly Gates long before you expected.