i would definitely document everything.....even if it means waking up in the middle of the nite and taping the chihuahua's then. Cause if theres enough complaints the condo association can have you removed...and you definitely dont want that! Especially when you're little one didnt even do anything! I would show what you have now to the manager and let him/her know that its not your dog doing it..therefore when someone does complain ....they can tell the complainer its not your dog. And being the wisea** that i am...id take the note..and just pin it on the chihuahua's owners door LoL I cant help it..i'm italian...i'm evil LoL