OldGit did that to me once... I sat in with his ceilidh band so he could play his bari and do some calling. He knew I hate soloing and that the last thing on god's earth I wanted was to take a solo. I'd even reminded him. So of course, halfway through one of the songs he was calling, he turned with an evil grin and pointed at me and bellowed "BASS SOLO!".
And the entire band stopped, leaving me all alone. In a song I didn't know. In B flat.
The git.