Morning Nailit.
I ,too attended a Penecostal Church in my youth. I think your rolling around on the floor , laughing hysterically, is a bit of an exaggeration.
Yes, speaking in Tongues is very peculiar. The rest of it is just happy clappy and behave yourself.
//laughing hysterically, is a bit of an exaggeration//
Not the one I attended it isn't Tills.
Got to go out now, (decorating for a friend) But happy to discuss it later :-)