Helga's mom brought her to her first Karate competition. Noting that the organizers seemed a little shorthanded she approached the table.
"Good morning," she said to the Director, "You look a little shorthanded. Anything I can do to help?"
"Well it just so happens we're short a fighter for the under 90 kg division," the director replied.
"Sorry," Helga's mom said, "I don't know a thing about Karate."
"That's OK" said the director. "We need referees, too."