ROFL! "sswwwwwwww" - - my chair doesn't make that sound, but
  i've had ones that do - and it's like they're saying,
  "aaahhhhhhhhhh thank GOD... man... did you have to FART so
  much!? Ugh!" Our chairs put up with a lot. I wish to publically
  thank all chairs in the world for putting up with our asses for
  so long. "