Oh no, so scary. Glad Leo is OK.
I had a GULP moment with a new kitten. Our wash water is pumped into a big laundry tub and from there up to our septic tank. I went down to change a load one day and there were little, tiny, wet kitten footprints leading from this laundry tub across the floor, out the room till they dried up. Obviously Woody had fallen into the laundry tub full of water. I don't know how in the world a 12 or so week old kitten got up high enough to fall in and how in the world he managed to get out. Lucky he didn't drown.