Unless, of course, the person is asking about "Captain Jack - the
Musical", which predates the Billy Joel song, but I didn't think anyone
outside of my high school ever heard of that! (Long story, very funny!)
And, of course, there is the poem by Captain John "Smiling Jack" Smith,
Retired, which went something like:
When a bit of sunshine hits ye
After passing of a cloud
When a fit of laughter gets ye
And yer spine be feeling proud
Don't forget to up and fling it
At a soul that's feeling blue
For the minute that ye sling it
'Tis a boomerang to you!
Ah, Captain, where are you these days?
Cindra