I know this is supposed to be about "work" instead of "life," but I'm trying to decide which one is the baseline level as a parent of several children. I'm thinking Level 4, but maybe Level 5. When my kids ask if / when we can go somewhere special or do some project together, I frequently find myself just shaking my head and saying that I can't answer for anything beyond the next couple of hours, because I need to coordinate with mom and all their siblings' schedules, and because I don't know who's going to get sick or have a tantrum that derails our plans, etc.

When my wife or I go down with illness or injury ourselves, it immediately goes to Level 6 or 7 for the remaining parent.