Everything and everybody needs a check out or a service from time to time, weather it's a car, a house, garden, wife or just a very much needed quality time with the family. :)
Great to see you got a man that knows how to work on stuff and gets prepared. To make sure same thing won't happen again/soon I'd recommend changing all spark plugs, because if one was in this bad shape, others probably aren't too far away. (mechanic advice)
Rawr!
Good advice! I just told him, and he agrees. We will finish our roadtrip first and then see about doing it when we get back home.