861. Repulsive Muktzeh
Shabbos 26:12
One may remove a shoe from a cobbler’s block on Shabbos, and one may open a clothes press that belong to someone who is not a professional laundryman. One may not, however, set the press on Shabbos. A press belonging to a professional laundryman may not be handled at all. It is muktzeh because of the potential financial loss that might come about through misuse. Similarly, rolls of unprocessed wool may not be handled because the owner is particular about them, but if they have been put aside for a particular purpose, they may be used. Unprocessed hides may be handled whether they belong to a regular person or to a professional leather-worker because the owner is not particular about them.
Shabbos 26:13
Filth like excrement and vomit that are in a courtyard where people live may be moved to a trash heap or an outhouse. Such disgusting things are collectively referred to in halacha as a chamber pot. If the filth is in a different courtyard, it should be covered by a utensil so that a child won’t get into it. One may step on spit that is on the ground without thinking about it. One may remove a pan of ashes even though it also contains wood chips because it is like a chamber pot. One may not intentionally create something repulsive on Shabbos but if such a thing comes into existence as a result of the natural order of things - or even if one violated the law and created a disgusting thing on purpose - it may be removed.