A small child can bite through an armoured tracheal tube.
Kong
C S
CS
D002675:Child, Preschool; D004869:Equipment Safety; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation*; D008297:Male; D014135:Tracheal Stenosis / Q000151:congenital / Q000601:surgery*