I work at a small company and they are really good about it. We have a little office out back and I put up and baby gate and he stays in there. My problem is his barking he never used to do it and now he does. I'm going to try the coins in the can. I also think he is bored but he has plenty to chew toys and stuff. I got him a brumble ball and he played with it for the first two days now he hates it.
I have noticed that he barks to get some attention so I think he is bored.