Apparently male flies often bring "fake" presents (maybe that fake poo they make in Hong Kong) to female flies to "distract" them long enough to mate with them. While the lady fly is busy opening her present ("A present? For me? You SHOULDN'T have!") the male is getting his freak on and then by the time she figures out it's a fake gift ("WHAT? Cubic Zirconium?") he's already done his business and flies away real fast before she can do anything about it. I feel like this is how I ended up married. "Oh my god, it's a ring! Not a great ring, but still...it's shiny, and...so....SHINY" and then I woke up married, with a tattoo, and with a really terrible hangover and vague memories of saying "I do."