Years ago, I worked on an assembly line when smoking anywhere was AOK. Very smelly and my pleas for a little better smoking etiquette (step away from your work station) went unheeded. So one day, I came to work having eaten onion soup which produced the silent but deadly form of flatulence.
A truce was agreed and we went on with our work without the offensive odors.
The ol' 'Left Cheek Sneak'?