His vita here:
http://blueandgraytrail.com/event/Edmund_Ruffin
He served in uniformed service in the War of 1812 (no combat), and enlisted at 74 in the Palmetto Guards of South Carolina. He was present at Sumter (didn't fire the "first shot") and at Bull Run, his only combat experiences.
I'm sure you'd rather he continued to serve with Jackson's foot cavalry.
No, he made a better chickenhawk.