Ha. One of mine can smell her Trifexis no matter what I put it in. I have to trick her by feeding her several little pinches of can dog food one at a time very quickly then one with the pill in it. She always gives me that "I can't believe you got me again" look.
I wrap the pill in a slice of cheese. She knows its in there, but she just swallows it whole, instead of chewing it. lol