we as professionals always need to be learning new skills and roles. Never let your skills get too specific or tied to a single company. Always be learning. Always get new skills. Always try to get different roles to grow yourself. If you get tied down to a specific company, technology, process...you end up being at the losing end. In this day and age, getting really good at a specific job or role is a detriment to you.
I think this is perfectly put, @5phs+171StnSJ. Staying dormant just locks you into one position and seriously reduces your chances of finding employment after being laid off. Find time to improve yourself, your future self will thank you.