The sense of smell is one of the strongest "sense" memories we have. Close your eyes, think of the smell of autumn...the smell of the dirt road to the cabin...I can close my eyes and smell Chanel 5 when I think of my grandmother. I can taste it in my mouth...I lost my sense of smell when I was in a car accident and broke my nose. The irony is that it came back 10-fold. I can smell things other people can't. (We were out walking in the back 40 not long ago--I said, "someone's grilling burgers." My DH looked at me and said, "oh, super nose, 10 miles away someone's having a cookout and you smell it." We laughed, but when we drove into the village later, there was a charity BBQ in the village (not 10 miles, only 8 miles away). I could still smell it in the air 2 days later when I went back into the village. I have very strong scent memories and a very sensitive nose. (I thought everyone's nose worked like mine--guess not.
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Most of my scent memories/recognitions are good, but some are awful. I hate the smell of bananas--but then, when the nerves were damaged after I broke my nose, everything smelt of bananas. I hate the smell of vodka--it makes me gag, but supposedly vodka doesn't smell (it does to me).
I'd probably give up my sense of hearing before I'd give up my sense of touch or sight. It would be hard for me to make a living if I could not see--it would also be hard for me to be me if I could not "touch." I'd hate to not be able to feel my DH's skin, or his hair, when I touch him. Or the softness of the fur of my dogs...But I could manage without my sense of hearing--my dad does. My Missy dog did. I wouldn't like it--but given that I spend so much of my time in silence working in my head, being able to hear is not the sense on which I rely the most.