What Happened to Plecos Bill?

We have a small aquarium in our living room. We used to have fish in it. One by one, they passed away and received a proper send off. All of the tropical fish were gone and we were left with Pearl, an albino catfish, and Plecos Bill, a plecostomus. Both basically bottom feeders. Finally Pearl kicked the bucket, and Bill was it. He had gotten pretty big, about 6 inches long. We kept talking about getting more fish, since it was a little boring to just have a sucker fish laying around in the tank. We ended up getting Moe, our dog, and just really didn't get around to it.
A couple weeks ago, the boys came home from playing down at the creek in our neighborhood. They had found a baby turtle. "Can we keep it?" First of all, this was the ugliest looking turtle I'd ever seen. The boys informed me it was an alligator snapping turtle. They have these things at our zoo. They get enormous, AND it's an ALLIGATOR SNAPPING TURTLE! "How do we take care of this kind of turtle, and where will we put it?" "What will we do with it when it gets too big?" We can sell it to the zoo." So they explained to me the things these turtles eat and that we could put it in the fish tank with Plecos Bill. I told them that it would probably end up eating Bill. So Cameron had the brilliant idea of flushing Bill down the toilet. Remember I said Bill was huge! I told Cam there was no way Bill was going to be flushed and he should probably just take the turtle back down to the creek. Well I went about my business, I heard the boys outside and went to see what they were doing. They had the fish outside flopping around and Cameron was digging a hole. "What are you doing?!" "We're going to bury him." "Alive?!" "Oh." "Probably not a good idea." So, they put Bill back in a shallow bucket with some water. Cameron explained to me how they tried to flush Bill down the toilet but he kept swimming back up. That's when they'd come up with the brilliant idea to just bury him in the yard. Not happening. So then Cameron's friend decided they could take the fish to the creek. At this point I really did not know what to say so I let them. "How did it go?" "He looked happy." Great.
The next day they came home with a second one. And the day after that, their friend had found another but there mother wouldn't let them keep it. I told them no way were we keeping three, so that one is down at the creek with Bill.
So, now we have two alligator snapping turtles and no fish. Sorry Bill.