Ok, fine. Take the one kid who you deem to have the greatest potential for future success, and be sure to let the others know why this selection was made, so they have something to ponder while they barrel down the road with a woman who likely shouldn't be licensed by the state to operate a 4000 pound motor vehicle. If they survive the trip, maybe they'll up their game so they are the one selected the next time mom decides to take the kids somewhere ... or not. The kids will totally understand, or maybe just think mom is crazy, or maybe just think you are crazy. But, I guess if you really wanted to hedge your bets, you could pick up a couple of mistresses, preferably with sufficient geographic separation to avoid all but the most cataclysmic disasters. There's really nothing crazy about this. If the T-Rex had thought along these lines, his progeny would still be here. But he didn't, and they're all gone. Fortunately, you have longer arms - the T-Rex, with those little arms, couldn't see what he was writing down, and thus, really sucked at planning. Think about it, have you ever seen a T-Rex in an MBA program?