This glitch lets you keep your familiars for longer, if they are for fifteen minutes. use up some of the time, say half of it. and then play a game. play that for a little bit and then get out. You should get to restart the amount of time you have with you Familiar. This may work with fairies and other things, but i am not sure. I also dont know if this works forever, it might only work once, i didnt' test that well. i'll test it soon though, and tell you if it works with others, and if it works forever.