Is one allowed to drink the juices which oozed out during eating; grapefruit issues.
דבר דבר (Dabair Davar): Saying Something in a Different Way;
Is One Allowed to Use Sticky Pointers on Shabbos?;
(Melting ice.) breaking the ice cubes to remove them from the ice tray; pouring hot liquids onto ice cubes (from a kli shieni);