The last Mr. Co-founder I had was a sham for the very reasons mentioned here. All talk, very little output with a side of excuses at every sit-down. I was too young and naive at the time to realize what we had was less of a partnership and more of an "I'll treat you like someone I found on canYOUbuildthisforme.com." Definitely a good thing to not be impressed by talk. Not every person who can administer a server can write code to run on that server. Wish I'd known that back then. Lessons learned. :)