dream fragment

I was at a zoo of some sorts. In this zoo, it was normal for the guests to go into the exhibits with the animals. I walked into a seemingly empty exhibit where i could see the tiger exhibit. Each section was protected by one electric wire. Somewhere in my part there was an iguana that I had not noticed before. It attacked me, but I beat it away with a stick. Soon after, though, there was a huge snake that came in and grabbed me (thus showing how useless that electric wire was) Similar to the movie "Anaconda," this animal wrapped around me and began attempting to crush me to death. I left the point of view of me and began looking at the situation from above. I do remember screaming out for help, but the scream was not as loud as I hoped. The people around got me free from its grasp by attaching a rope to my leg and a truck and then driving the truck away to pull me out. After they got me free, the snake disappeared, but another, larger snake came. For some reason, at this point, I knew there would be 3 snakes total that would attack. It was as if this was a video game that I had played before. After being freed from this snake (through the same means as the first), the third snake came and ate me. At this point, it really wasn't me who the snake ate because I was no longer in the point of view of this character, and he had changed from me to someone else anyways. Regardless, the rescue team began throwing very sharp objects at the snake's mid-section in order to cut a hole for the guy to crawl out of. They apparently trusted their men enough to not hit the person inside. The dream continued, but from there it gets fuzzy.