Pokemon the Series: Ruby & Sapphire Season 601 Episode 5 In the Knicker of Time!

Ash and friends meet up with an eccentric Trainer, Nicholai the Knickerbocker, who claims that the key to communicating with Pokemon lies first in leaving one's knees always exposed to nature and open air, and second in disguising oneself as a Pokemon to better understand their behavioral patterns. Upon learning that May is the daughter of a Gym Leader, Nicholai immediately challenges her and defeats her soundly in her first Pokemon battle ever. When he carelessly insinuates that her father must not be much of a Gym Leader, Max sets out for revenge. His plot to sabotage Nicholai's attempts at catching a Zigzagoon ends up drawing an entire group of these Pokemon after him. When Nicholai comes to his rescue, he offers an important lesson about achieving understanding between humans and Pokemon.