My career

Now this is something that has occurred now and then, people are surprised to find out what I do for a living.

So here is a question:
Assuming you didn't know, or possibly don't really know what I do to earn my paycheck what would/do you think I do?

I'm not talking which industry, but job title, like carpenter, plumber, ect. I am curious to see what people think my job is. Now, I know some would go to the default answer given my love of the industry I am in and love.