"What kinda gas is dis?! Eeeyagh! What happened to my voice?! I sound like one of the Chipmunks!"
— Meowth, Pokémon: The Series
"My favorite element is helium. I can't speak highly enough of it!"
— Hugh Dennis, Mock the Week, "Things you wouldn't hear on a science documentary"
"Kripke, I found the nozzle! I am going to kill you!"
— Sheldon Cooper, The Big Bang Theory
They answered with a war cry that would have sounded impressive if their voices weren't so squeaky from the oxy-helium mix.
"Wait," Aeneas commanded. The helium in the atmosphere in the station made his voice shrill, but the timbre of command remained.
— High Justice by Jerry Pournelle
John: (squeaking) What just happened?
Rygel: (in a defensive, gravelly soprano) It's a perfectly natural bodily function! And it's odorless!
D'Argo: (like an infuriated Munchkin) So your loyal subjects tell you!
John: (incredulous) You fart helium!?
