My current dream job is to own/work in a coffee shop. It's silly, but I want it so bad. I have no idea why this is my goal.
Prior to that, I wanted to own a Japanese-style noodle shop in Sweden. My plans to move there were unexpectedly canceled, and noodle shops are a dime a dozen in the states, so that's off the table.
Prior to THAT, I wanted to design or test video games. Seeing as I have mild carpal tunnel and no skills that would help me enter the field, that's also off the table.
As for impossible, only-in-my-wildest-dreams job? Author and graphic novelist. I have stories I want to publish, and comics I want to draw, but realistically, I'd have to do that all on the side of a day job. Hopefully at a coffee shop. :D
I'm hardly qualified for any of the jobs mentioned, but I have similar-enough experience working as a server in a restaurant, so it shouldn't be too hard to make the jump to barista. In terms of owning or managing the shop, though, I have a ways to go. I am, however, moderately qualified for the wildest-dream job.
If I were offered the job(s), I would pounce on the offer like a starved wolf on a steak; I'd just make sure to work my ass off to keep the job(s).