My calc teacher in HS was awesome, but no matter what I did he wouldn't give me an A. I always got a B. So when I got a 5 on the calc AB AP exam, I gave him a little "Take that!" attitude. It was definitely worth it though, because it got me out of taking 2 college calc courses and ended up with 10 calc credits before I stepped onto campus. I also got a 3 on the chem AP exam, but that was only good for 3 science elective credits. But those 13 credits kept me ahead of most freshman, so I was able to register for classes earlier and no classes were full.