Thwarted by...

Typically librarians are thwarted by technology, a vendor's disruption of service, or any number of other problems relating to live demonstrations of library resources.  Well today, I was thwarted by a fly.  Seriously, the fly would not leave me alone.  It kept circling me throughout my presentation.  I guess the lesson learned here is never wear bright colours to a presentation.  At least I made reference to the fly so that the students didn't think I was flailing about for no reason!