Backstage Fight

At a concert hall one night, the stage manager comes across an oboe player and a viola player having a fight.

He breaks the fight up and asks what the fight was about.

The oboe player says:

- He broke my reed! I was just about to play my big solo when he broke my reed!

- Well? - says the stage manager to the viola player.

- What do you say to that?

In umbrage, the viola player replies:

- He undid two of my strings but he won't tell me which ones!