We have a set of colorful plastic tumblers that we use for our drinks. Some are green, some blue, some yellow, and some pink. 'Cause we're just that Klassy.
A year or so ago, my son rescued a 3 legged frog, which had been, just moments before, the 4 legged variety, in just the nick of time before being eaten by a bird (the frog, not the son). The vehicle of rescue was one of the green cups. Which one, I cannot know.
Which is the reason that since that day, and with determined resolve, I have never taken a drink from a green cup.
In a lapse; a moment of unexplained carelessness, I drank from a green cup.