Savor the Irony

Part of my job is to be the primary phone call-answerer.  As such, I often pass along messages to coworkers.  This morning, one started asking me all sorts of questions about a message I took yesterday.  "What did she mean?"  The whole time, I was pondering how to say politely, "All I did was write down what the caller said.  Why don't you call her back and ask her?"  (The coworker finally thought of doing just that.)

Why don't people ask you questions you can answer?