Hi, master.
A picture paints a thousand words. You should show him some of Joe T's grapic photographs of electrocutions and burns, and then give him a quick lesson on grounding and overcurrent protection.
I'm outside of Philly, and other than the city, only one local town requires a test for an EC license.
The state legislature has repeatedly voted down statewide licensing similar to New Jersey's, and I can't imagine why.
Some (most) of the stuff I come across ranges from marginal workmanship to seriously dangerous.
I believe licensing would help things, but some philosophies disagree.

[This message has been edited by Redsy (edited 06-11-2004).]