I would be mortified if my child had been arrested on suspicion of assault and I would wait until I had heard all the evidence from both sides before I made accusations of racism.
As it was, he did two stupid things as a teenager which brought him to the attention of the police, both times his fault; he was severely told off with my support, and punished. Both times the Police said, privately, don't be too hard on him, he's learned his lesson, which he had.
Employing a cleaner - and difficulties thereof
