On a recent school trip to Australia, while visiting a lake, a crocodile grabbed the professor and he started to turn purple. The professor was twisted and rolled but it was very difficult for him to break free. The children were very scared until the police arrived. When the teacher arrived to the hospital, the doctors could save him. The children visited him and a boy apologised to the teacher for having pushed him to the crocodile. The bad thing is that there was no signage to warn of crocodile nearby and that’s why this happened.