In regions such as SE Asia, dogs tend to be problematic because large numbers are routinely rejected by their owners (perhaps they can no longer afford to feed them) and those dogs end up running free, which in turn means they end up living in packs; reverting back to the lifestyle of their ancestors (i.e., wolves). I once lived in a building that was near to an area of open ground where such a pack lived. So I've seen it all with my own eyes.

Rabies is not exactly commonplace in SE Asia, but there's no wild dog you can trust. You have to be constantly on your guard if approached by a pack dog. And many deaths due to Rabies are reported annually. I think they have a similar problem in Australia's Outback.

Pack dogs often loiter near to roads, and as a result, traffic accidents can be caused by them. I have known of local people riding motors-scooters, and being bitten by a dog simply due to riding past too close.

This is why dogs, in any meaningful survey, can and should be classified as dangerous.

And in North Africa, where I once worked, packs of Dogs were a known danger out in the Oil Fields. In such barren areas they become far more aggressive. You'd be a complete idiot to try and pet one of them!