Unfortunately, the statistics don't presently exist, so it's impossible to know, but I doubt most interaction between police and the general public is incident

Unfortunately, the statistics don't presently exist, so it's impossible to know, but I doubt most interaction between police and the general public is incident response and/or arrests. They work plenty of public and private crowd control and traffic control, and man more or less permanent patrols at malls, beaches, parks, and if you live near a city center, they just walk the streets. Most of the time I've personally interacted with a police officer, it's either been just happening to cross paths because I lived downtown and was going for a walk, when I worked at Disneyland since they had a dedicated unit, and Los Angeles Lakers championship parades. None of those involved an expected naturally unhappy party.