Re previous toot, I am reminded of the joke about #SoftwareTesting: a tester walks into a bar and asks for a beer. 57 beers. 0 beers. -3 beers. 0.5 beers. ½ a beer. π beers. ∞ beers. A cat. A çat. A çat (which is different from the previous çat). Everything works. She drinks up and asks where the toilets are. The barman catches fire and the house next door turns into a rather surprised gibbon.