Here's an other one from May's first battle:
May: I'm going to battle with my Torchic.
Brock: Let the battle begin.
May: Torchic, start attacking.
Torchic: *sweatdrop* ???
May: What's wrong? Go on, attack. *Points toward the opponent*
Ash: It doesn't work that way. You have to tell Torchic what attack it must use.