Yesterday, tenants moved into the house over the fence (bottom of garden, not next door) and I was kept awake most of the night by their dog which they left in the garden to bark and, at various points howl. Started at 10pm, finally stopped at about 6am. I don't actually understand the mentality of that, even though I'm not a dog owner; I just found it a disgrace. Obviously it was a warm night so I had to have windows open. If it happens again tonight, what should I do?
> Go round and politely ask them to sort it
> Go round and impolitely ask them to sort it
> Call the police
> Ignore it and hope someone else does one of the above

Collective thoughts would be much appreciated.