Everything was going swimmingly with the TDD workshop until he asked us to install the factory_girl_rails gem and run bundle. This never worked for me so I was wondering if anyone else had issues?
I actually made a post on Stack Overflow about it:
http://stackoverflow.com/questions/24022391/issue-with-installing-factory-girl-rails-gem
That’s weird.
Based on the information you posted on Stack Overflow, it seems like there might be an ssl problem somewhere. I’d try running rvm osx-ssl-certs update all in your terminal, and trying again.
Do you know if you were behind a proxy server, perhaps in a corporate network?
Yes, it does seem like it is an ssl problem but when I ran ‘rvm osx-ssl-certs update all’ it said I was up to date.
Maybe I am behind a proxy server? Working in a cafe today. Have worked here in the past without these issues, but it’s possible they’ve changed something. Will try to go to another place 
DOH! Yes moved to another place and now it’s fine. Well I am learning a lot today, just not what I set out to learn! 
A quick fix for this is to change the source in your Gemfile from source 'https://rubygems.org' to source 'http://rubygems.org'