Yeah considering the subs are on a track at the bottom of the lagoon, there's no way for them to "sink"...but collide,maybe and fill with water ..that is possible..Happy April Fools day! lol
You had me until the part where it mentions the witness was named Dory.
When I read that the guy was Australian, all that went through my head was "oh no, I hope it wasn't actually someone Scottish" (we're from Scotland, but have often been mistaken for Aussies in the US! ).
Okay so I knew 100% it was a joke when I started reading the reply's. But when I was reading the article, I was thinking how could a sub sink, it's on a track? I know two girls name Dory so that didn't even phase me, but the part about the clown fish and the dentist. I also thought how odd that there was an officer Crush and that his comment was inappropriate. So there where several things I was making me question what I was reading, but it was the replys that confirmed what I was thinking.
I saw the headline and immediately did a google search. So I guess you got me. When I didn't find anything I figured it was a joke. Then I read it and was sure.