Sorry to hear that! It's gross, isn't it? Happens to all of us eventually.

Last time I was pooped on, my boy had just shed and I got excited about how great he looked. Took him out of his enclosure, started walking to get the camera, and then felt something wet and warm on my shirt and on the floor (I was barefoot). Took me a while to figure out that he had gone all over me and the room. The floor stunk for days. Lesson learned: don't hold a freshly shed snake if it hasn't pooped in a while!!