It's a well-known trait of doxies that they hate being alone, so they follow their humans around the house. Of course, part of that is their hope of obtaining some yummy human food, but not totally--they simply want to be where we are. I'm fine with that, and that's one reason I still miss my Duke--he always had to be in the same room with me if Clark was working (he subs in the local county schools several days a week since he retired from teaching--I know, it's a busman's holiday, right?).
Their penchant for companionship includes following us into the bathroom, and Duke always did that, too. You just get used to it after awhile. Moms of toddlers know exactly what that's like, since she hardly ever gets any time to herself, including calls of nature!
Aaaaand, since today's Friday, I'm sure you're looking forward to the weekend as most of us are. Have a great one, enjoy time with your doxie(s), and relax--you deserve it!
Dachshunds . . . you gotta love 'em!