Visions of the night

Had a dream I was at the dentist and he was doing work on my bottom front teeth.. after it was done I was told to pay 75 dollars so I started digging through my purse and didn't have the money. I was upset and had stepped out onto a pier.
There were other people hanging around the pier and I saw a fishing pole leaning against the rail of the pier and the line was in the water .. the pole was bending. I walk over and look down into the water and see this shark it was bone white and bright grey it was trying to grab the line down. I see a snake to the left hand side make it's way at the edge of the rock that was underneath the surface of the water towards the shark .. this shark is bobbing up and down the water still grabbing the at the line with it's teeth.
As I am leaning on the rail I notice it was coming loose so I backed up. I decided to get off the pier.. people are looking in amazement at the shark as I make my way back to where I was off the pier near the boardwalk I look over and see a dead alligator floating belly up near what looked like a sewage pipe opening.. and I also see a snake floating belly up too.. that's all I could recall.