Way To miss becoming lucid ^.^

Last night I had a dream in which I was a dinosaur. I had a girl friend dinosaur, and while swimming from one island to another one we met a shark dinosaur that could walk and live outside of the water. Our new shark friend was single and REALLY needed to get laid. We explored one of the islands, and by the end of the dream we saw a restaurant on the shore, we went to the back and noticed that the waitresses working there were the same raze as our shark friend. We thought it was the perfect opportunity to get our friend a girlfriend, but the waitress told us to get out of the water before she jumped in an ate us all. I almost shit my pants, and got out of the water. Also, at some point of the dream I noticed I had... 2 penes.

It was a weird, kinda fun dream. But my question is... how on earth did I not realize it was a dream. I mean I didn't even notice something was wrong, like... I don't know, just yesterday I was human, and I was taught that dinosaurs were extinct for millions of years?

whoops, didn't mean to put this in lucid experiences, can someone move it x) ?