In contrast to the previous post I'm giving you some things about researchers:

1. You are a researcher, if you have once disassembled your granmother's clock (unfortunately I did it)
2. (you are still an engineer if you assembled it back and it worked)
3. You are a researcher, if only other researchers can understand what you have written
4. You are a researcher, if you are thinking about a general solution before to screw in a bolt.
5. You are a researcher, if after done with your greatest invention you look where to apply it.