I act as a kind of "sniffer dog" in my household - I get used to track down the source of a smell, or to see if something is safe to eat. It seems to work, as we rarely get food poisoning etc. It seems a useful talent. I also get deployed to find things that have dropped onto the floor, or identify strange noises - the latter not always so successful, as although I can hear stuff that others can't, I may not be able to pinpoint the exact location of the noise...
All this is great, but if there is a noise that I cannot stand, or a really bad smell, then it's not so much fun...
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The optimist says the glass is half full.
The pessimist says the glass is half empty.
I just want to know who drank the water...