I'm a mechanical engineer (U of MN -- Go Gophers!).
I have specialized in internal combustion engines, but currently do forecasting.
I've been a decision analyst since 2006.
I've been fortunate enough to take several DA and modeling short courses from Professor Howard and the fine folks from SDG.
I love Excel. I'm a huge fan of doing sensitivity analysis and have written a free add-in do do tornado diagrams.

CONFESSION: I'm pretty clumsy, and do just enough to get by and have it be reliable.