So many idiots on the road

I often see people on the road who just ride however they want. They'll put on their left turn signal but keep riding on the right side. At that moment, you really don't know if they're actually going to turn left, and then they suddenly cut in. It's really frustrating. There are even some people going to the market who do the same thing. If you want to browse, could you please park your bike properly and then get off to shop? Don't keep riding your bike while looking at what's available to buy on the side, not looking ahead. That's really dangerous.