Dogs are still a major nusisance. They're not so bad on their own, but when there's a pack of them they can be very agressive. Poultonkid - i would carry a stick walking across the fields between Riverside and Baga at night.
And for anyone who thinks they're just cute and cuddly, you should try the monsoon when they hunt in packs, and turn some areas into virtual no-go zones, by day as well as at night.
They're also a major contributor to noise pollution.
All in all Goa would be a better place if there were less of them, though i don't want to open the can of worms that is the answer to how to achieve this!.