Miscommunication
I love the Little Man, but there are times when he reminds me of another guy in the house who tends to be forgetful...   Me: Aaron, where is your lunchbox? [Last week, he'd left it in his math classroom overnight.]  Aaron: Just a minute...here it is.  Me: Thanks.  Aaron: Uh, I didn't eat my sandwich because I had pizza.  Me: Why did you have pizza?  Aaron: It was the pizza party.  Me: You didn't tell me you were having a pizza party.  Aaron: Oh.  Me: What was this pizza party for?  Aaron: Well, it was for different things, but I had pizza because I won the spelling bee.  Me: You didn't tell me you won the spelling bee, either.  Aaron: Oh.  Me: Yeah, Oh.  Congrats on the spelling bee, honey. Let's make sure you remember to tell me when you win that Nobel Prize.