We had a rainy day fund, not so much an e-fund since our jobs are stable. But it's exhausted due to our recent plumbing repairs and my car needing some expensive repairs. We have to retrench a bit so we can try to save more each month to rebuild it.
I have nothing because of paying for Scotty's treatment, so now I'll start building up again. I had a fairly good one until all the health issues with Cleo and Angie in 2010. I do have lots of stocks I could access if there was a true emergency in the meantime, bir I try not to count that.
Assuming we've both lost our jobs is not actually one of our planning assumptions, since we both work in very stable professions with very stable employers. But if our income did somehow drop to $0, we have 8 months of basic expenses lying around in liquid savings. I generally think this is too much since it's highly unlikely we would lose both our jobs and we're both readily employable, but I've been putting away for a six-month maternity leave, so when I return to work it will be lower. I think 4-5 months is about right for us in terms of an e-fund.
Taking into account our Roth IRA contributions, which could also be accessed in a true, true emergency, I'd say we have another 6 months there.
Worst-case scenario isn't in our planning assumptions either, mainly because he's highly employable (he still fields headhunting calls). My job isn't as in-demand, but I'm a jack of all trades, so that helps. I was really good at my previous position (which is still in demand), so it's my fall-back. We can comfortably survive off of just FI's salary if it came to that.
Ours isn't great right now, the wedding and house wiped out a lot of it. We maybe have 2 months or so. Like Fuss though, we have pretty stable jobs, but that's not to say that something could possible happen to either of us, just unlikely that both of us would lose them at the same time.
We don't have a designated e-fund, just savings and investments, a chunk of which could be cashed out if necessary. If we both lost our jobs, we'd cut our spending dramatically, and could probably make it a year +.