<human>: When I was around 8 or 9, i had a dream that I jumped over a handrail at a local grocery store near my house. It was one of those dreams that made you feel like a real bad ass because I pulled it off so smoothly.

Well 8 year old me confused it as a memory and sure enough, one day my mom and I are leaving this store and I utter the famous last words, "Hey Mom, watch this." She has to watch her son run up to a hand rail and fail miserably to jump it. I mean I didn't try to take it like a hurdle on the Olympics, I sort of ran at it and then turn at the last second and sort of take it like a high jump. Did I mention that the rail is around chest high?

I hit the rail with the back of my legs. Naturally the first thing that hits the ground is the back of my head. I roll over to my hands and knees and craw a few feet and the stagger to my feet and walk to my mom's car, blood running down the back of my neck and all. I started crying and felt like a real jackass. My mom is one of those mothers that doesn't really know what to do in those kind of situations, so she is freaking out and calls my step dad and asked if I need to go to the hospital. Turns out the blood is coming from a knot on my head with a tiny cut on it so it was no big deal.

I still cringe when I think about how I miserably failed at looking cool all because I could separate a dream from a memory. And you better believe that this is a regular joke in my family, normally starting with "hey mom, watch this."

Summarize the given text in a few sentences.
<bot>: Dream mislead me to believe I could jump over a hand rail. Smacked my head on the ground and now its a big joke in my family.