Have you tried any bark deterrents with Bentley -- pennies in a can, a party horn, compressed air cans that make a hiss, or the ultrasonic device that only dogs can hear? Some people have had luck training with these, using keywords like "quiet, "no bark," or "settle down."
Some YT members have also used spray bottles with water to effectively train.
Having a daily routine may also help: meals at the same time, brief play breaks or performing tricks for treats. My boys know that they get a big outing after dinner (ride to the park and long walk) and that helps calm them during the day.
There are some triggers that my boys are hopeless with -- the garbage truck, delivery trucks, and dogs walking by. I let them bark a little, but then I tell them to "settle down." If they don't listen, I announce that I'm leaving the room and I go where they can't follow. Or I redirect them to performing a few tricks for kibble rewards and they settle down.
__________________ Kristin, Max and Teddy  |