vpw covered his tracks nicely at the time. BGL was a legit Christian who didn't "think evil" of other Christians (and was a Canadian and not, say, a paranoid NY'er who might double-check things.) vpw found out about Leonard's class, and-according to vpw- found out one was in progress and he couldn't join it since it had already started. He proceeded directly there and basically parked himself until BG relented and let him join. So, vpw "graduated" that class. He took it again a few months later, along with a handful of other people, including Mrs W. vpw was considered a "grad" who was retaking it.
Then, a few months later, vpw asked Leonard to ok him running Leonard's class once, locally. Leonard agreed. vpw sent Leonard a photo of the grads of "Leonard's" class.
What vpw told all the students was that this was vpw's class on "Receiving the Holy Spirit Today". (No syllabus or diagrams, this was a few months later.) All the people who had taken Leonard's class were already considered "GRADS" of THIS class by vpw himself. That's because it was the same class, just taught by someone else.
Later, vpw added Bullinger and Stiles and split the class into 3 different classes that people had to pay for.
Some time later, Leonard found out vpw continued to teach Leonard's material AS HIS OWN.
BTW, a poster here once took Leonard's class while Leonard was teaching it. He also looked through Leonard's photo album of his classes, and found the photo vpw sent him. He got Leonard's side of things from him at the time. vpw's claims were documented in Mrs W's book, which says the grads of Leonard's class were considered grads of this one. It doesn't say "this is the same class, plagiarized", but what it DOES say makes that pretty clear.