The travel bug.
We just started and they're tired already. Actually, this is how YaYa looks after she's taken motion sickness medicine so that she doesn't throw up on the 766 curves between Pai and Chiang Mai. She doesn't throw up, but she's very grumpy for a while.
But most of the time, the kids are arguing over who gets to carry the bags, as in, why does she get three when I only get to carry one? I'm not kidding, and I don't have magical workaholic children or something. I think there's just something that feels adventurous and brave about carrying bags and/or guitars.