I had never heard of tongues until I was around 19 years old and worked at a lumber yard with a few other young fellows. I made friends with a fellow we called "TL", he was in his early twenties, married and had a child. I found out he was a Christian and we became fast friends. We used to get an hour for lunch, so one day he invited me over to his house, which was only a short walk away. I accepted.
Well, I'll never forget when I walked in. From a bedroom I heard the most awful and strange sounds I have ever heard. I am not trying to be insulting, but it did not sound human and disturbed me very much. I asked TL what that noise is, and he said, "Oh, that is my wife and a few of her friends, they are having a prayer meeting."
Well, I couldn't take it, it was unbearable to me. I told TL I could not listen to that sound and left. He laughed at me later, but I just couldn't handle that sound.
TL and I remained friends as long as we worked together. It was never an issue for us, but I could not handle those tongues.