The fact that Gardevoir can't breed with Alakazam.
Okay, yes, I know that's an extremely weird statement, but it stems mostly from the complete fail I experienced when I attempted to use a Ralts and Abra as metaphors for a couple of characters' relationships in one game I run. That is, the boy had Abra, and the girl had Ralts. As they grew up and grew closer together, the Abra eventually evolved into a Kadabra, while the Ralts eventually evolved into a Kirlia at the exact same time to symbolize how close the two characters were getting. I meant to have their final evolution indicate the fact that the two characters have fallen deep in love, but then I realized that the two Pokemon aren't even part of the same Egg Group, which means attempting to use them in a love metaphor is completely awkward.
On top of that, I never understood why Gardevoir, who looks fairly human compared to what is in the humanshape group, couldn't be part of said Egg Group. Also, it destroys the fact that I used to think Alakazam and Gardevoir looked cute together.
Outside of that bout of complete weirdness...
1. The fact that I can never catch Onix with one Ultra Ball, even when their health is at the low end of the red part of the spectrum, they're paralyzed, they're at level 8, and my Pokemon out is both stronger and faster and could beat that stupid rock snake to a pulp. Maybe it's just me, but the Onix line simply refuses to stay in a freaking ball of any sort.
1a. The fact that I need Onix to complete my personal challenge of creating a living Pokedex.
2. Word to Itachi. Wobbuffet with lipstick. Lol whut?