@No3392 and @MyWarmOchreHare
Wtf?! Troll-hunting is bad form, you know.
It absolutely, totally, 100% happened! How cynical to think it didn't. Do you know any 10 and 11-year olds? The ones I teach really care about the environmental impact of the decisions we all make -it's part of the curriculum.
As it happens, no water was wasted: we were in the middle of a heatwave, remember, the classroom thermometer showing 30°C. He chugged it down and that was that.
And what's more, my pupils also know how to find their way around hypocrisy traps like that one, MyWarmOchreHare (we debate things like this in English), and not feel 'called out' if someone tries to make out that their concerns are unfounded or their efforts in vain. We all do some things which have a negative environmental impact some of the time. But it doesn't mean that we shouldn't try to limit our impact where we can. Personally, I'm lucky that I've been able to set up my lifestyle in such a way that I don't have to drive, stream, eat meat, travel abroad or buy 'new' clothing, technology or furnishings, but I hold my hands up to boiling a kettle a few times a day.