What is in it? Cozy? Messy? Big enough just for one? Does it have 2 wheels?
Where is it? Does anyone else even know it exists? What do you do there (besides whatever you want)? Is it social or for healing? Do you connect your today with the previous and future you?
How does it relate to your comfort zone? Is it an escape or reinforcement?
Is life for doing and your cave for being? is it the shed out back, a canoe from your teenage years, yoga, the barbecue (in January!)?
Can you make your man cave mobile so you never have to retreat from life or your marriage? So you can stay and figure things out through conversation.
If you have a Man Cave that helps you regroup for a better tomorrow does that make you a cave man?