Butt plug??

Ok I've never used one before. Years ago when my husband and I were still dating, he mentioned that he really wanted me to get one of the tail plugs, but I've always been so against anal we never tried. I want to surprise him one day, I know I'll probably have to start smaller first, but my biggest fear is that when we take it out there will be poop on it! Does this happen? Or is there a way to make it not happen? 😥