So I'm hearing a dog whining outside my apartment (like when you crate train, that type of whine) I'm distracted with homework but after 30min in I realize this has not stopped. I go out and find my upstairs neighbor has left a puppy (maybe 3-4mo old) outside in the balcony. Sliding glass door shut but curtain is open with a light on. I think, maybe it's temp and go back inside. Two hours later... pup is still out there and crying relentlessly. So I tried knocking twice, no luck. Had my fiancé stand by the balcony to see if someone crossed the apartment but no one did. So, I decided to leave them a note (copied in comments.) The noise doesn't really bother me, to the point of not letting me sleep, I just feel awful for the little baby (I'm a dog lover, own two, and it breaks my heart to hear them cry.) I tried to sound friendly... Was I right? I don't want to be THAT neighbor but would also hate to hear this baby crying more often.