A perfectly legitimate reason for everyone to hate blitz crank even more..

http://leagueoflegends.wikia.com/wiki/Poro

At the bottom where it says Trivia..

"kill Poros with Blitzcrank Blitzcrank's Static Field. The passive of its ultimate will damage and kill them."

If blitzcrank was the guy who SAVED THEM in poro round up... and he can kill them..... Rito.... That's just wrong...

http://2.bp.blogspot.com/-TRU5f6uPGbo/UrTaCTenUCI/AAAAAAAAW-w/Floul8JESYk/s1600/Poro+9.png