...when you train your house rat to bite your enemies.

...When you go on a hike to the woods and throw rubber bouncy balls at wild animals trying to 'catch' them.

...you correct every single thing a group of friends say when they're discussing the old school Pokémon. XD

You've done the following things:

1. Memorized the stat strengths/weaknesses in almost every single Pokèmon.
2. Remember at least 25 Japanese names of Pokèmon (Drifloon: Fuwante, Jolteon: Thunders) and looked up the meanings of them.
3. Memorized all of the Pokèmon's in-game cries.
4. Can name the first anime appearance of almost any Pokèmon, if they've been in any.
5. Have made paper-mache Pokèmon that are the same height as they're supposed to be.

^Done all of them. XD