I keep forgetting to cancel my turn signal. It really hit home today when I had left it on after a right turn right before a gas station. A guy coming out of the station thought I was entering and almost pulled out in front of me. I could tell he was mad - he was shaking his head. Luckily he was aware enough not to pull out, but I may not be so lucky next time. After that scare I kept thumbing the cancel button every few seconds to be sure, but it bothers me that I keep doing this.