You were out for a walk in the nearby PokePark, planning a picnic for yourself and your current Pokemon team since it was such a nice sunny day.
While you were walking along, taking in the background scenery, you noticed a Flygon with an upsetting expression on it's face, looking around like it was looking for something specific. You found it a bit weird once you saw the Flygon taking notice of a garbage can, before quickly digging through it. You decide to pay it no mind, assuming the trainer was out and about.
When you did find a perfect spot for a picnic in the PokePark, you start to setup all the necessary stuff. Table, snacks, cloth, etc.
Once you finished, you can't help but see in your peripheral the same Flygon. It seemed to take a keen eye on you, but stayed just out of frame as if it didn't want to be seen. But you definitely noticed something was off, considering the Flygon was holding it's stomach, like it was hungry. And covered in all sorts of dirt, like it hadn't washed in ages.