didn't vote, not sure how to vote, worry is such a broad word...
we pay our monthly debts, put $ into retirement, extra onto my student loans (borrowed $65K in 1993-95, still paying $13K off after 3 years' deferral during lean post kid years when i stayed off work completely for 6 mos, and minimum payments when the interest rate was 2.2%), have no car loans, pay off full cc bal each month, a few months' cushion in liquid investments, have "play money" for hobbies.
but, we live in CA: our mortgage (including prop taxes and insurance) is $40,000 a year. not much can make that kind of payment seem
unworrisome, even if we do have ~50% equity in the house these days. we can't refinance without a jump in rate, and we got a first and second (both are just under 6%), so that the first would stay under the "jumbo loan" cuttoff (at that time) and thus be 1/2% cheaper.
so we can't get an "equity line" since it has to be in the "second" position. if we were able to get an equity line, i'd pay off the SL's with some of our savings (since they are 5.2% now), and then pay more on our mortgage each month with the ~400/mo SL payment money. then if an emergency came up we'd use the equity line for cash. meanwhile we'd save a couple percent on the difference between the loan rate and our savings rate.
where's alfred e newman when you need him: "what, me worry?"

(anyone old enough to remember him?)