According to witness, Jiro was thrown out from a car and while he is running after his owner's car, another car from behind knocked him down.
His two hind legs were injured and both front legs were dislocated. He is recovering currently, both back legs seems normal. He walks normally but he didn't run much and so far we have never seen him jump.
Jiro is a very good boy. If you say No, he will listen. Probably because he used to have owner, he is very close to human. He likes to be around people, playing his own toys while you do your work.
A very good companion for people who stay in landed or even apartment. He is just fairly active and doesn't bark very often unless something agitated him.
However, do be aware of his leg injury. I am not sure if he will heal completely in the near future, as in if he will be able to run fast and jumps around like other dogs. He might heal completely or he might stay this way forever. If you are going to adopt him, love him for how he is currently.
Quite sad how his original owners dumped him like that - hope you find him a good home soon! :)