Started in Shotokan Karate, went to Tae Kwon Do, went back to Shotokan Karate, then wandered around a bit more during my grad school years, trying another style of Karate, and even training a bit in Jiu-Jitsu.
In the end, I didn't quite come back full circle, but ended up in training in one of the Wado systems (Shotokan's cousin

).
It wasn't a matter of loyalty; I would have glady stayed in any of the above systems, but as a grad student and later on, as a postdoc, I was moving from one city to another, living like a gypsy, and having my heart ripped apart by having to say goodbyes to some really good people at each dojo. It was also a matter of what was available in the area. Maybe I could have stuck with one of the other systems, but I wasn't willing to travel 3 hours one way, to train at the nearest schoolm nor could I, because of the job.
In the end, though, I'm glad that I did get those chances to train under different teachers in different styles. Even different teachers within the same style was a nice benefit, since it showed that you can certainly take different approaches to teaching, and still be successful. I hope to stick around in the current system for a long time, but if fate has me moving elsewhere, and not being able to continue in that, then I'll just have to start writing another chapter in my life's book!
The only knock that I have against myself for having wandered around so much, is that every dojo where I began anew, considered me as "unorthodox." Still, despite this, I felt at home at each place, probably because there were good hearted people there, that were more than willing to help.
One thing for certain, it's nice to have settled down...