Imaginary friends are, for many people, a childhood rite of passage, giving them their first true friends and confidantes. But be careful who you make friends with, for some creepy imaginary friends come back to you as an adult, if they were even friends in the first place. Though most people write off imaginary friends as simply products of over-active imaginations, the way some adults describe their past imaginary friends suggests something else may have been afoot. Imaginary friends, like many things for children, aren't always as benign as you may assume they'd be.
Whether their imaginary friend was a departed spirit or a malevolent entity from the unknown, listening to adults describe their imaginary friends is always entertaining and a little unnerving. These true Reddit stories go into detail about the creepy imaginary friends people had as kids. If you can relate, you may want to think back on how "imaginary" your friends really were.