PhD. Samuel West had with his academic touch and qualification, shown us that “play” not only are for children. To be “playful” can perhaps be the most rewarding description you can get. The connotation of foolish and childish may be the total opposite of “adult and intelligent”: the identity and focus “to create” came from those with no cultural frames, no fear and a curious mindset, and are those that succeed with new innovations!
Can it be more frightning for the major population that just want to fit in the society, notice that those how are “outside” got the future power?
However, read the book of how to have fun in the office, and think of the insights.