There are many noises that easily irritate me, especially those that prove unexpected. Motorcycles happen to be the most notable, because the sound is so distinctly loud, unsettling, and often very sudden. As it is I am not fond of being surprised by anything no matter what it is. When alert and wary, such as being out and about? The last thing I want to be is blindsided by some obnoxiously loud sound, motorcycles being the most common.