Well.....[longwindedstory]I originally was going to be an aviation major and be a pilot which was my dream since childhood, but then I got a letter from the university that I was about to attend a month before school started saying that they were going to add about $40,000 to my tuition for fuel costs and maintenance. Since my family isn't exactly rich, I was totally fucked and was forced to change my major. I was undecided for a quarter and then decided that I'd give computer science a try. Things went well for a while and I really liked the challange that CS gave me, but then I had to do calculus. I failed miserably at it and since you really need to know calc to be a programmer, I switched to history, since that was the only subject in high school that I ever did really well in. Very quickly I got bored with it, mainly because I already knew most of what I was being taught (I got away with going to lecture only once the entire quarter and still passed the quarter). This was at the end of my sophomore year. During this time I was in ROTC which was the only thing that I really enjoyed the entire time, and also was really the only thing keeping me there until I got passed over for going to Field Training (basically boot camp for ROTC) which would have enabled me to continue in the program and get my commission.
So there I was, end of my sophomore year, studying for something that has pretty much no practical use in the real world, wasn't going anywhere in ROTC, nothing else interesting me enough that I would want to major in, and $36,000 in debt already. So I said screw it and dropped out. Now I'm waiting so I can enlist and hopefully start paying off my loans and eventually go back.[/longwindedstory]
tl;dr I changed my major thrice and dropped out.