Do Not Type "File:///" in OS X
Everything crashing:  - Skype (type and right mouse click)
  - Sparrow (type and wait)
  - Chrome (address bar)
  - Safari (address bar)
  - Tweetbot
  - Twitter.app 
  - Mac App Store (search bar)
  - Base (any textbox)
  - terminal (in the preferences screen)

Not crashing:  - SublimeText

Pretty much each and every text box on the entire system.