Friday Funny: Doc Vader on “Substance Abuse” Posted on February 16, 2018 by Douglas Farrago MD ZdoggMD with another really funny bit. Find him at www.zdoggmd.com (Click here to sign up for your free bonus weekly newsletter. No spam. Ever.) Share this:TwitterFacebookLinkedInLike this:Like Loading... Related Posts Friday Funny: Doc Vader Makes SlimeHere's my friend ZDoggMD doing his thing. Enjoy. More at www.ZDoggMD.com. (Click here to sign… Friday Funny: Doc Vader and Cell PhonesGreat points. Nice job, ZDoggMD. (Click here to sign up for your free bonus weekly newsletter.… Friday Funny: Meme Friday Funny: BrokeEnjoy your Friday. Friday Funny: Nitro Another great one from Bizarro Comics.