Space Faeries

A popular spacefarer's myth originating in Quadrant 1.
Space Faeries are thought to inhabit interstellar space and are able to enter the hyperspace bubbles of starships in hyperspace.
They then variously perform random acts of mischief, sometimes bringing about unexplained system malfunctions, strange personnel behaviour - even short term abductions.
Hence the expression for anyone who is a bit out of touch with reality as being "...away with the space faeries..."