Things like this really annoy me.
Last summer at the BWC there was a group of teenage schoolkids with teachers, supposedly supervising them.
One lot dropped a plastic drink bottle in the adders enclosure, I spotted it and told one of the keepers who removed it.
A short while later the kids were back, hoping a snake had crawled into it, disappointed to see it had gone they were about to drop another
in when I pointed the camera at them, needless to say they beat a hasty retreat. Yes I did tell one of the teachers who seemed totally unconcerned
On the latter part re the teachers ambivalence, I would have been inclined to report that attitude to the BWC folk. Because IMO clearly school parties need educating as to their responsibilities in advance of their visits!
I did, but as it was on a public day and they make a lot of money from school visits during the week I doubt anything was said
In which case, a sad insight into the example that that teacher sets by not taking such things seriously..........................all the talk of 'leaving' a big legacy of debt to the future generation(s) but if they care squat about what I am trying to leave why the heck should I care whether they will have to pay for the mess they are creating!!!!!