Farts

Broccoli farts, to be specific. 

 

Lethal. 

 

I thought human beings had evolved to develop protection from the emission of their own gas. 

 

I almost choked on my own.

 

We need to study skunks. How can they let rip and remain unaffected? 

This suggests your gut flora are out of balance.  You should be able to digest a vegetable without biohazardous consequences. 

Drink less alcohol, eat a more balanced diet with particular focus on fibre and pulses, take a few supplements like a probiotic and some drinkable bacteria cultures, drink more water, take more exercise, steer clear of white starches and sugar, be sensible about red meat and love your bowel more, then it will love you. At the moment it's trying to get your attention. 

If so Diceman the guy on the bus next to me this morning was definitely a vegetarian. 
I had however always believed that digested flesh was more noxious than digested plant when exhaled.