It's good to hear that your day ended positively. My kids range from 5-17 and they've gotten into it - even without the toys.
Every time my fiancee has gone with me, however, we've not found the cache and/or have gotten eaten alive by mosquitoes, or some other minor tragedy. I've found about 50 caches over the summer, but the handful of DNF's have always occurred when he's been along. I'm hoping we can have a successful trip out soon and they he'll catch the "bug" as well...although maybe I'll be creating a bigger addict than even I am