NDN got a jack Russell pup for Christmas. That is fine.
We live in a high rise on 9th floor.
Dog is quite aggressive. Has barked and snarled at me and DC on more then one occasion. We have lifts and just this morning dog barked non stop while we waited for lift and then the entire journey down (this takes about 20 seconds but that is long enough to reduce DC to tears) NDN appears to have no control over dog who simply ignores her commands to sit and be quiet.
Dd (2.6) who liked dogs is now scared of them. DS (5months) is just scared and cries on sight of the little fecker.
WIBU to report them to the landlord?
Or to RSPCA as keeping a lovely dog in a flat all day is cruel.
Dog yips all day and night 
It will be fairly obvious it's me that has complained as we are the only other flat they share a wall with and the only flat with dc on this floor.