The zemer "Shalom Aleichem" is obviously addressed to angels. The Tur (OC Siman 3) gives a short text to says before entering the bathroom: התכבדו מכובדים משרתי עליון, etc. (also obviously addressed ...
In Kol Mekadesh that is sung Friday night it says המאחרים לצאת מן השבת וממהרים לבא which seems out of order. Do we not first rush into Shabbos and then delay its departure? Then why do we sing it in ...