Curse you, you devil. These damn treats are worse than kitty crack. My nice
peaceful cat went from a cool, easygoing kinda guy to a complete nutcase if
there is a package of those treats in the house. He will climb mountains to
find the package, then throws it on the ground, wrestles with it while
growling, starts howling when he can't open it, and then goes and nips your
heels until you relent and give him some.

I don't know what is in those things, but it must be similar to heroin. I've
never seen such a reaction to treats.