There are special challenges that come with caring for a disabled pet but there can be special joys as well. Barbara Techel knows this especially well and has written extensively about her life with Frankie, a daschund partially paralyzed after a spinal injury. She’s the author of several books and runs the website JoyfulPaws.Com.  Frankie’s wheelchair, incidentally, came from Eddie’s Wheels in Shelbourne, Mass., and the owner was a guest on Petcast No. 142. That show was reissued in the Petcast feed. Plus, Steve does not confront a guy who had left his dog in a van in 100+-degree weather at an Arby’s. And Emily cites her favorite book, “The Cat Who Came For Christmas,” in a discussion of why airlines only permit two pets in coach on airplanes.     Web: www.thepetcast.com E-mail: [email protected] Voicemail: 702-997-3300