Busy Giddy Minds

From Shakespeare, Henry IV Part 2, Act 4, Scene 5, King Henry IV, the usurper, tells his son young Harry, Henry V:

Therefore, my Harry,  
Be it thy course to busy giddy minds  
With foreign quarrels; that action, hence borne out,  
May waste the memory of the former days.  
More would I, but my lungs are wasted so  
That strength of speech is utterly denied me.  
How I came by the crown, 
O God forgive;  
And grant it may with thee in true peace live!

Thus, as the King were to deflect problems at home, seek out foreign troubles.