You'll get rattled by the institutions & the everyday tenant.  

On dog size I feel differently because little dogs although maybe they can't do as much damage, in my experience they are yappers so a big noise issue. 

The noise from upstairs is annoying so next time I'd do more testing of the quality of soundproofing in the ceiling (older home so wasn't as good).

@Marc Winter we are  struggling with this exact issue on carpet vs laminate but being a second floor condo sometimes its noise and sometimes there is alot of subfloor work to put in the vinyl, increasing the cost alot.

This is my first problem of this nature and it has me more than a little rattled.

One of our properties is on the far south side over my UW-Rock, which is my favorite rental spot because it's full of single family and duplex homes, lots of cul-du-sacs that keep traffic noise down, and near the interstate.

I own an upper/lower and it can be loud for downstairs and been contemplating putting carpet in the bedrooms in the back just to deaden noise for privacy.

But if I come across a person that I think is sincere and is in dire need of help, I might help (without making any noise and letting anyone know).

Forget that noise. 

Sorry I have to post this because it just happened: Your wife says you need a new truck because yours makes lots of noise and is 22 years old, you look at $20K trucks calculate the payments on your amortization app and decide you cannot afford it. ...Then you see a million dollar portfolio for sale on BP and start frantically running numbers on your app thinking there has to be some way I can afford this.