Out Of Sight Meaning

Example :   Jack's really mad at you. You'd better stay out of sight for a few days.  The notice was out of sight behind the door.‎1879, Richard Jefferies, The Amateur Poacher, chapter1:  They burned the old gun that used to stand in the dark corner up in the garret, close to the stuffed fox that always grinned so fiercely. Perhaps the reason why he seemed in such a ghastly rage was that he did not come by his death fairly. Otherwise his pelt would not have been so perfect. And why else was he put away up there out of sight?—and so magnificent a brush as he had too.  With the company merger out of sight, the bankruptcy will proceed.‎  How was the party? Out of sight, man!‎