Can You Just Answer The Question?

I said I wasn't going to post much about the job, but I just got to get this off my chest. One of the things that I just hate is when you ask someone a question the answer that comes back is "go ask your manager".
Why is that? Are you to busy to stop talking to you husband/wife/son/daughter/love of your life to give me an answer? I'll accept a "I don't know".
When you tell me to go ask my manager, you might have just well told me that you are to busy and stop wasting my time.