Peeps.
Put me into the baseball card gum club, as well.
When I was a kid, I would buy packs and packs of the stuff, pile the gum into one stack and bite into it at once. It was freaking horrible...the powdered sugar they put on it was like a powdery acid. Yet...I was addicted.
A couple of years ago, Topps released their Topps Heritage packs with gum. Sure enough, I found myself doing the same thing. They have not changed their recipe. This time, however, I spit the thing out after a couple of seconds.