What or who is it that causes certain smells to waft past now and again?

Question

Sometimes it is Jasmine, sometimes other beautiful fragrances, sometimes it is pipe tobacco which smells really nice. It only lasts a few seconds, maybe a minute or two at the most and most unpredictable.

Answer 1

wind

Answer 2

Sing along now...the answer my friend is blowing in the wind, the answer is blowing in the wind!

Answer 3

I usually attribute those to the dog.

Answer 4

It's in the Wind!!