Katie is big into "sniffing" things.  

I took out minced garlic from the fridge yesterday....."Katie sniff it!"

I bought a tomato...."Katie sniff it!"

I guess this is partially because of me.  Whenever I use a spice or cut into a vegetable or fruit, I ask if she wants to smell it.  She says, "Yeah."  Then I say, "Okay.  Take a sniff."

So, Daddy sits down the other day to put on his sneakers.

"Katie sniff it!"

He holds out his sneaker.  She takes three or four little sniffs, looks up and says....

"Smells like poopy".