Seeing Eye Chihuahua

here's a guy with a Doberman Pincer and a guy with a Chihuahua. The guy with the Doberman Pincer says to the guy with a Chihuahua, "Let's go over to that restaurant and get something to eat."
      
      The guy with the Chihuahua says, "We can't go in there. We've got dogs with us."
      
      The guy with the Doberman Pincer says, "Just follow my lead."
      
      They walk over to the restaurant, the guy with the Doberman Pincer puts on a pair of dark glasses, and he starts to walk in.
      
      A guy at the door says, "Sorry, mac, no pets allowed."
      
      The guy with the Doberman Pincer says, "You don't understand. This is my seeing-eye dog."
      
      The guy at the door says, "A Doberman Pincer?" He says, "Yes, they're using them now, they're very good."
      
      The guy at the door says, "Come on in."
      
      The guy with the Chihuahua figures¹, "hey why not?," so he puts on a pair of dark glasses and starts to walk in.
      
      The guy at the door says, "Sorry, pal², no pets allowed."
      
      The guy with the Chihuahua says, "You don't understand. This is my seeing-eye dog."
      
      The guy at the door says, "A Chihuahua?"
      
      The guy with the Chihuahua says, "You mean they gave me a Chihuahua!?"