by Paddy Smith

Sodium hydroxide. 15 minutes after application, stick head in oven to scrub off gunk, inhale heartily and discover that, yes, do in fact have nerve endings *inside* lungs. Or at least, did.
 
Inhale vinegar fumes to neutralise trachea. Can now see into oven through window, but not through etched corneas.
 
Fun with household chemicals. Next week: setting fire to pencil sharpeners.