I appreciate your comments, but he walks very well by my side, as he has been trained. Since he is ONLY allowed outside for bathroom purposes right now, he is allowed to sniff around a small grassy area where he goes. When not laid up he gets 45 minutes of a good walk plus other 10-15 minute ones throughout the day.

He's extremly frustrated and bored being cooped up, since he is used to lots of playtime and exercise, which is almost certainly where this behavior is stemming from.