Male Terrier, Pit Bull/Mix named Pinon available for adoption

Update on Pinon- He has settled in nicely, now is more comfortable. He's walking better on leash and is good with people and the children I introduced him to (5 and up) he is getting difficult to get him back in his run, I had to move him to the smaller run because of the inconvenience of the gate in run 5 , I'm trying not to force him so he doesn't develope a negative reaction when time to go back in, but it's reaching the point where it's the only way to get him in, he is wise to all my tricks so I need to find new ways. He is a really nice dog , sweet and gentle for his size.