Gut shot antelope is about the worst thing I ever smelled except for fews day old dead guy. Few days old dead guy is definitely worst. All of that is if I don't count some of my own cooking though. Now that's some bad chit!
I was wondering when someone was going to bring up the old dead guy... I didn't want to be the first.
Once you have been subjected to this, there is nothing that is worse... and you end up noticing it more frequently afterwards.
We get them at work... they call them "sudden deaths"... I have always wondered why this term is used when the person passed about three weeks previous... nothing sudden about it!
I step off the elevator in an apartment building now and can immediately tell that there is someone on that floor just waiting to be discovered.
Another smell that is instinctual is the smell of burning flesh... of our variety.
You may not know the source, or what it is at first, but when you smell it, the hair on the back of your neck stands up.