Two homeless Caligulas were sitting in a back alley, watching a dog lick itself.Big D walked into a bar and sat down next to Frankie who had a dog at his feet. "Does your dog bite?" Big Dummy asked. "No." Frankie replied.
A few minutes later the dog took a huge chunk out of Big D's leg. "I thought you said your dog doesn't bite!" Big Dope screamed in pain. "That's not my dog." Frankie answered.
One stain was very impressed at how limber the dog was. "Man, I wish I could do that".
The other stain said "Maybe you should pet it first".