Tino- "I dunno."
Mom- "Is it in the paper wrapper?"
Tino-"No. See?" (showing me the wrapper)
Mom- "Hmm, when I gave you a piece of chocolate last night there was one piece that I laid inside the wrapper."
Mom- " Dad, did you eat the other piece?"
Dad- "nope"
Mom- "Tino, did you eat the other piece?"
Tino-"Nope"
Mom- "Well, maybe we have mice then. I see little nibbles on this piece here"
Dad- "Eww! I'm not eating this, these brown flecks must be mouse turds!"
Tino-"No! We don't have mice!"
Mom- "Well, if Dad didn't eat it, and I didn't eat it, and you didn't eat it, then we must have a mouse."
Tino- "Well... I did hear a *squeak-squeak* sound coming from the cupboard."