ahem 
@ JonnyD
Yep, the fish and net stuff is borrowed from Schiffs “How an economy grows and why it crashes”. Before I read that, I always used the wood and axe story. But fish and net makes more sense because it is more important..
But since you mentioned it, wasn’t one of the main characters in it also called Hank? 
EDIT: Oh, now that I clicked on it. This is Irwin Schiffs Version.. not Peter Schiffs… lol.. 