public void join(Client client) {
		client.send(PacketCreator.userList(this));
		addClient(client);

		for (Client c : getClients()) {
			c.send(PacketCreator.addUser(this, client, c == client));
		}

		if (topic != null) {
			client.sendButlerMessage(name, String.format(
					"°BB°_Dieser Channel hat folgendes Thema:°r°#%s", topic));
		}
	}