Yes. I was exposed to that. They didn't ask me for money, though. That still happens today.... people being "taught" how to do it. "You have to reach out in faith, just open your mouth and start making sounds, and it will HAPPEN...."
I figure if the Spirit decides I need to speak in tongues, it will happen spontaneously, not because I "prime the pump".
Yup the 'ol "Priming the pump" thing is a COMMON HERESY in the Assemblies of God (and probably other Pentecostal groups as well).
It almost guarantees that the tongues that result, will be phony.
In my case (a couple of weeks after being prayed for to receive the "Baptism in the Holy Spirit" (as the AG calls it) in an FGBMFI meeting in the '70s, SUddenly there was an odd word in my mind, and when I spoke it, more words followed, and I was "speaking in tongues" spontaneously. 50 years later I still am, BUT NEVER in "Message to a meeting" format. I've never been "Burdened" to do that - only to Interpret.
Quick story: There was a fellow in a AG church up in Ohio, who could be depended on to break out in tongues EVERY SERVICE, at the same point in the service (toward the end of the singing). And
EVERY UTTERANCE was the same. Same words, same length, same order, same, same.
SO, I wrote him off as a fake.
But after I began speaking in tongues myself, in one service shortly after, the same fellow went off with his utterance - and the Holy Spirit burdened ME to INTERPRET for the first time, so I did, speaking the words as they flowed through.
And While I'll admit to being a little skeptical now and again, I have stopped being as legalistically judgemental of other people's giftings. IN MOST CASES, however, I regard "Tongues in meetings" as kind of a "trumpet sound" to alert the people that An interpretation (which has meaning) will follow.