The cartoon guy is running from the dragon possibly because he's not strong enough to fight it or he's just scared and his instinct is to flee for safety.
Maybe the dragon is too scary and threatening for him.
It could be that the dragon is trying to attack the guy or chase him for some reason. Maybe the guy has something the dragon wants or has accidentally angered the dragon.
Maybe he's being chased or is scared of something.
The kid might be running away from school because they were afraid of a test or didn't want to participate in a particular activity. It could also be that they were following their imagination and creating a fantasy of running away.
Maybe the kid had a fight with someone in the village or was scared of something there.
The cartoon dog might be running away from home because it sensed danger or was just following its curiosity. Sometimes, dogs in cartoons do unexpected things for the sake of the story.
It could be that the dog saw something else that frightened it and made it run away from the girl. Or perhaps the girl was trying to catch the dog and it didn't want to be caught.
It could be that the fish is some sort of mythical or magical creature that the man is afraid of. Or maybe the man just has a phobia of fish and is panicking without a real reason from the fish's side.
Maybe the animal is scary or threatening. That could be why the man is running.
The cartoon guy might be running because he's being chased or he's trying to win a race. Maybe he's also training for a sports event.
The dog might be running away because it saw something that caught its attention and wanted to explore. Or perhaps the girl was trying to catch it and it didn't want to be caught.
Maybe the dog was scared of something the girl did or had something else that spooked it.