Just a glop

You know the saw about the difference between an optimist and a pessimist: the pessimist says the glass is half empty, the optimist says the glass is half full.
Well, there is another view, as expressed by engineers: the glass is twice as large as it needs to be.
At this moment, I just wish I still had a glass with a glop of wine in it, but you know these 75cl bottles: just when you are getting into your stride, you find them empty. I blame evaporation caused by global warming.