For me, back in 6th grade I wanted to join the school band, and for some reason percussion seemed really cool to me (and I did eventually get into it, five years later). Went to my first lesson, played some simple patterns on the snare with the band director. At the end of the lesson he said "You know, I think you'd make a great bass player" to which I replied "What's a bass?" So he brings me over to this beat-up black case in the corner, and opens it. There, surrounded by quite possibly the brightest shade of orange lining imaginable, is the beat-up black '67 Fender J, which was quite literally the first bass guitar I ever laid eyes on. And things just kind of took off from there =P Of course, because that bass was the very first bass I ever knew, I had to buy it from the school out of sentimental and emotional attachment, not to mention the fact that's it's an incredibly awesome bass haha