Indoor Pool

Something happened during my childhood that I vaguely remember. We had an open water basin (bak air) near the kitchen. Like most old water basins, it was huge and quite deep (for a 5 or 6 year old), and the kitchen area was a popular place to sit together and chat. I remember perching on the side of the basin. An older person was sitting next to me, but I forgot who. I remember thinking, "If I lean backward, I would fall into the basin. I wonder what it would feel like? The water looks very cool and nice." I can't be sure if these next things really happened because I find it so bizarre. I think I really leaned backward and rolled myself into the basin. My whole body and head was under water. It really felt cool and nice. It was a bit dark and I heard underwater sounds around me. There were a lot of commotion above the water. And I guess I was immediately pulled out, but I don't remember this, or anything else that happened after that. Was it real? Was it a dream?