These images show examples of type crimes because this is serious type that when put in Comic Sans it is made playful since Comic Sans is a playful, young font. Mixing a serious message with a silly typeface misconstrews the message that is trying to come across.
This shows you the only time you should use Comic Sans (if you even dare to use it then!:))

http://comicsanscriminal.com/

This website is absolutely perfect for this assignment!

It has a ton of good examples about the use of Comic Sans, and really just makes fun of the typeface!