Gathering Instruments

Because double basses are large, the kids usually use a school instrument for rehearsals.  If the string director hasn't brought it down before my rehearsal, I'm begged by a few girls if they can please go and get the double bass.  Today, one of my viola players got in first - and I said yes.  Once it was present, we had the following:

Viola: Okay, where do I put it? [we had a different orientation for our set up today]
Me: Over there [pointing to the double bass stool]
Viola [from about a metre further to the right than she needed to be]: Um, where do I put the double bass?
Me [slowly]: Over there... Right next to the double bass stool.
Viola [looks around, almost does a 360 degree turn, eventually spots the stool, puts down the bass].
Double bass: Um, can I go and get the right bow?  This is... just ... it's wrong.  It's the wrong bow.
Me: Yep, go.
Double bass [dramatically]: Thank you.
Viola [looking at me rather blankly, eventually says]: Oh.  I need a viola.  I was so busy getting the double bass, I forgot I need my viola for this.  Can I go and get my viola?
Me [a little dumbfounded]: Ah... yes...  It does help. [Thinking - oh she's such a viola player!!!]