Must not step into girl's toilets

At multiple points we had a chasing game that was boys vs girls. Each gender's toilet would be the safe space and the other gender could not step in. Not only could not, but if one did, they would be mocked! So, one time a girl threw some water to a boy, and then the boy became angry, so he chased her, but she went into the toilet, and then he couldn't chase her. But then he did something unthinkable! He did one more step inside the girls' toilet! Alas, even that wasn't enough to grab her. He failed but he had already extended too much! So, immediately after, he walked back. Everyone was shocked. He stepped in the girls' toilet on-purpose (!) -- what an embarrassment!