Petting zoo
I can imagine that working in a zoo must be a mix of joy at getting to spend so much time with animals that you love and annoyance at how some children can treat them. This keeper obviously felt that way after seeing how these teenagers were treating her beloved llamas.
I completely get why she let the llamas spit at them, especially as she had already warned them. Not letting them wash up in the bathroom was a bit too far though, as I think they’d probably learned their lesson.