First of December, a mixture of the tough and easy: the first half-hour was non-stop exercise (whether leg-raises or continual repetitions of kizami-tsuki); the second was self-defence techniques. Some really nasty finger break stuff left me with aches through my knuckles, but I'm reassured to see that I'm improving generally with the self-defence (or "RBD" as I've seen it called on the 'net).
Sensei gave a min-lecture at one point about aikido, which he has also practiced for years. He expressed the view, basically bearing out a lot of internet commentary on that art, that aikido isn't really for fighting. It's more a form of bodily harmony or meditation. It's not useless but nor is it for "the street". In all his long experience he barely ever employed it.