You can OD and die from smoking to much. The dramatic convulsions kick in before that which means is really rare, but nicotine is known to be very toxic. And does kill people who apply to many patches etc. https://en.wikipedia.org/wiki/Nicotine_poisoning#cite_note-L...
"Smoking excessive amounts of tobacco has also led to poisoning; a case was reported where two brothers smoked 17 and 18 pipes of tobacco in succession and were both fatally poisoned."
"Smoking excessive amounts of tobacco has also led to poisoning; a case was reported where two brothers smoked 17 and 18 pipes of tobacco in succession and were both fatally poisoned."