I remember chasing around rabbits as a kid and eventually they'd wisen up and chase you back once they realized you were all bark and no bite. It happened to our cat too except it dry humped him for a minute (he didn't give a fuck, but that rabbit sure did).
Now I'm wondering if you could do that to lopunny. Spook one, chase one around until it chases you down, and humps you into oblivion.