I feel so sorry for those poor unfortunate people, and the bad smells they have to on occasion put up with. Why? Because for even for one day I would love to be able to smell anything. I have anosmia — total lack of smell, nothing at all. A skunk could spray an entire room and I would not notice a thing. At work I am considered handicapped, sensors for gas and smoke have to be in my work area. This was due to a skating accident, skull fracture, and concussion, no helmet.
So when you smell something good bad or otherwise, be happy that you still have your sense of smell. Not only does it keep you safe, it sparks memories, and is a large part of your ability to taste.