[alaskayorkie]

Yeah, sounds like boredom might be part of the problem. Chewing up the pee pad and other stuff sound like symptoms to me. Try to establish a routine where he knows when play time is. Mine know they get a walk in the morning and a walk at night, then some training or play time in between. When they learn they can count on that exercise time, they're more inclined to wait patiently.

In the meantime, maybe set up something larger than a crate but where you can control what gets peed on. Maybe a 10-foot xpen with a bed on one side, pee pad on the other and a sheet on the bottom. At worst, you can wash the sheet and protect the carpet. If he keeps chewing up the pee pad, put it in a litter box.

And there are other toys you can leave that are safer than bully sticks. As Verbena suggested, a Kong stuffed with something yummy might work. My experience is that once they learn that exercise comes when I get home from work they don't need stuff to occupy them during the day.

Good luck!