[TheOtterPaper]

I have found that working with Pivotal's form of Agile Programming with pairing has been incredibly helpful in bringing me out of my shell.

This might sound surprising considering it is considered a very social atmosphere

[rimliu]

To me bringing someone from they shell does not sound positive. Snails, tortoises and similar creatures would not be happy about that, why should humans be?

[dagenleg]

I think in this case we refer to the turtle (or a snail) reaching outside of the shell with their appendages, not completely abandoning the shell. This usually happens after the moment of danger (the one which prompted the retreat inside the shell) has passed and the animal feels safe again.