Smell-O-Vision

According to Wiki, Smell-O-Vision was a system that released odour during the projection of a film so that the viewer could "smell" what was happening in the movie. The technique was created byHans Laube.
Thank goodness there's no smell-o- vision on blip, as this enormous pile of poo had been set fire to... and just as I'd hung out my washing too!!
I thought fires were not allowed to be lit during the day, or are farmers excluded?
I have had it easier today as most of my guests left by lunchtime. Mckenzie is still here and was very well behaved today.