Singalong

Bluebells are bluebells
Cause bluebells are blue
Bluebells are bluebells
Cause bluebells are blue

All together now

Bluebells are bluebells
Cause bluebells are blue
Bluebells are bluebells
Cause bluebells are blue

And so on for eternity

Years of travelling on school buses to play hockey taught me that. I'm pretty sure that my memory of the rules of the game are unlikely to be as easy to recall.