Anyone else have any experience with Bloody Mary?

Just wanted to share my experience here, I realize that Bloody Mary is a typical schoolyard legend perpetuated by dares and fears, but I had my own experience when I was younger.

Me and my brother were desperate to have any kind of paranormal encounter and we both figured Bloody Mary would be the easiest way to do so. We went into the bathroom, locked it, and prepared ourselves for anything to happen. We said Bloody Mary three times and waited, hearing nothing and figuring we had to say it thirteen times.

Around the eighth or ninth time we said it we were interrupted by the saddest and most desperate sobbing coming from a woman. The sound came from behind a shower curtain, It sounded like someone who has just experienced a painful loss, we looked at each other and he elbowed me to check it out, to which I fearfully tore the shower curtain open, finding nothing.

The sound had stopped when I got closer to the shower anyway, and I always figured I either had a close call, or my brother was just messing with me. However I do wonder how he would have made such a sound, without the help of smartphones or speakers that we have today.