→What is a Bosis?
# A basket of fruit with a rock in it shouldn’t be moved without shaking out the rock or at least spilling out everything and returning the fruit without the rock. However, if spilling/shaking out the basket will ruin the fruit one may move the basket as a whole. <Ref>S”A 309:3, Mishna Brurah 309:10 </ref>
# A purse which is made to hold money if there’s no money inside is considered a [[Kli Sh’Melachto LeIssur]] and so if there’s a key inside one may open it to take out the key. <Ref>Shemirat [[Shabbat]] KeHilchata 20:16 </ref>
# If someone leaves items in a drawer with a muktzeh item on top of a permitted item, some say that the permitted item on bottom isn't muktzeh, while some disagree.<ref>Trumat Hadeshen Pesakim 193 writes that some wanted to permit something that was left haphazardly on top of something else unless it was left there to rest there securely. He disagrees with that position. Magen Avraham 309:6 accepts the lenient view. Rabbi Akiva Eiger 309:4 rejects one of the proofs of the Magen Avraham.</ref> Ashkenazim can be lenient in a case of need,<ref>Mishna Brurah 309:18, Shulchan Aruch Harav 309:9, Orchot Shabbat v. 2 p. 134</ref> Sephardim should be strict.<ref>Taz 309:1, Chazon Ovadia v. 3 p. 133</ref>