One afternoon while playing with a friend in the yard, the young Greentree was scolded by his mother. “Be quiet like a SEAL,” said Vivian Greentree. His friend immediately replied — as one would expect from a 7-year old. “Ninjas are quieter than SEALS.” And thus, a monumental argument began. WHO is quieter? Ninjas or SEALS? SEALS or Ninjas?