I used to take a big hit, and then cover my head with a blanket and exhale and sit in it for a minute or so. That worked great, but I have switched to vaping so I don't do that anymore.
It is weird that he is OK with synthetic marijuana, but against it in it's natural form. I also think he should have treated this medical marijuana patient better.
http://www.youtube.com/watch?v=2hc6iPx3NcI