They usually only attack when surprised -or really hungry -otherwise they tend to avoid humans unless habituated. The noisemakers usually get them to go in a different direction or just not be as surprised so they don't feel threatened.
Why do they have to be so cute?
Thanks! And yes, they look cute, especially polar bears and these are even worse, hihi. The other day I was listening to David Attenborough saying polar bears sometimes actually hunt human beings!?!
Yes, I remember a news item from about five to ten years ago. About a dozen rich Public School pupils went to the Arctic for their school trip and one of them was killed and possibly eaten, when a Polar bear attacked their camp.