In the U.S., there is a custom to burn the mortgage paper after the last mortgage payment has been made. Should one say Shehechiyanu on the event of now officially owning his home?
If I borrow something may I do something which I believe improves that thing, without the owners consent? For example if I borrow a library book and find an error in one of the facts printed there can ...
From Kitzur Shulchan Aruch 10:22: מֻתָּר לִקַּח תְּפִלִּין שֶׁל חֲבֵרוֹ גַּם שֶׁלֹּא בִידִיעָתוֹ לְהָנִיחָן וּלְבָרֵךְ עֲלֵיהֶן, כְּמוֹ שֶׁכָּתַבְתִּי בְּסִימָן שֶׁלִּפְנֵי זֶה סָעִיף י"א לְעִנְיַן ...