Written on the painting was a single word. That word was: "John Lennon I have been sent from the future and you must break up the Beatles to prevent the formation of a computer which will murder us all."

We live in a highly sophisticated world of gender signaling, mutable lines which nevertheless must not be crossed. For men, this can be a particularly fraught territory. Until all products have been sufficiently vetted and labeled, here is a helpful primer to some under-researched girly vectors best eschewed by males.