Ask your friends and family if they have ever had an experience with bullying (been victim or perpetrator of it or just seen it happen). You may be surprised (or not) at how many people have experience with bullying.
Here are some websites that may be helpful if you are ever faced with bullying...
http://www.dosomething.org/tipsandtools/11-facts-about-school-bullying
http://www.police.govt.nz/nobully