First, Rachel Carson is probably responsible for more deaths than Hitler and Stalin combined, not that she meant to, but via malaria which had been controlled by DDT and now isn’t.
Secondly, there was a professor in California who ate a pound of the stuff to show it was harmless to humans. When I told my junior high students this (their history book had a glowing bit on Rachel Carson) they’d ask “What happened?”
“He died...”, I’d answer, “...thirty years later while climbing a mountain while in his 80s”. Thus ended the lesson for the day.
J. Gordon Edwards
Edwards was known for eating DDT before lecturing on its safety 
Edwards was a prominent supporter of the use of DDT and critic of Rachel Carson. He claimed that bans of DDT were not based on good science, and accused environmentalists of politicizing issues regarding pesticides