Now that I'm officially job-less, and am a lot more in-tune with long-term cash and income needs, I've started to realize exactly how little $1M really is. While you think you can live off the interest of $1M, keep in mind that at today's rates (3% guaranteed and maybe 7-8% more aggressive investments), that's only $30-80K/year before taxes, and with inflation, in 10 years that will be even less.
I'm not saying that many people couldn't live off that amount, but I think for a lot of people (definitely myself and probably for most people on this forum), it's not enough.
You should have your husband do the math on $1M in the bank, no income, lots of free time, and two kids (who presumably plan to go to college)...perhaps that will incent him to get a bit more creative and aggressive in his investments...
There is always a certain amount of fear for me in any investment and it basically boils down to the fear of losing what I have. Some fear is not necessarily a bad thing as it should make an investor thoroughly check out an investment and back away if there are problems. Someone with no fear will either hit it big, or lose it all.
Another fear for me is retiring at any age. I grew up in a workaholic family and that's exactly what I am. To be honest, vacation bore me and I don't quite know what to do with myself when there isn't some sort or work to do. I also don't like the idea of a reduction in income.
Ask JScott mentioned, $1 million isn't much anymore. My Dad once mentioned that in the early '70's he thought that if he had $250k to invest in safe investments like index funds he could retire. Obviously $250k is nothing today.