I have the 11-11-11 Old ale sitting in my Ferm closet. I've done about four brews now since that in the 10g Corny keg I use as a primary. I did not get any contaminated brews until this Tripel I am about to bottle. I know for sure there's wild yeast in there since I dipped a sterile cotton swab just to the surface then swabbed a wild yeast testing media. Sure enough white colonies (what I suspect is brett B) formed over the weekend. This might not be a bad thing to have a funky tripel at 10%abv I just wasn't planning on it.
Going through life is hard.
Going through life stupid is harder.