Attached screenshots from the second of the Riverside County DA's videos linked to below.
Posters with the attached screenshots placed prominently in every smoke shop that sells butane would be my suggestion. The poster's message might be,
"Please leave BHO extraction to professionals. BHO extractions done indoors without full forced ventilation in a lab setting is suicidal."
https://www.youtube.com/watch?v=1fSCMCwmlQw
https://youtu.be/TqfoGf7OCiE
https://www.youtube.com/watch?v=eZwYDfOsSF8
Posters with the attached screenshots placed prominently in every smoke shop that sells butane would be my suggestion. The poster's message might be,
"Please leave BHO extraction to professionals. BHO extractions done indoors without full forced ventilation in a lab setting is suicidal."
https://www.youtube.com/watch?v=1fSCMCwmlQw
https://youtu.be/TqfoGf7OCiE
https://www.youtube.com/watch?v=eZwYDfOsSF8