no he was only left with a mark and angerness
No, it is only made up on a book called Holes. You need to separate what is fact or fiction.
The Warden swiped Mr. Sir's face with wet nail polish containing rattlesnake venom.
She is ruthless, unsympathetic, bitter, cruel, and vengeful.
In the book hole she was called Lu by Mr.sir and Mr. pendanski.
The rattlesnake has a nasal opening on either side of its snout. Look at the image above.