Common manifestations are wandering, irritability and labile affect, leading to crying, outbursts of unpremeditated aggression, or resistance to caregiving.
Mack would make strange decisions (which his coaches and players usually overruled), make inexplicable outbursts, and call for players from decades earlier to pinch-hit.
However, comet scientists were wary comets can be extremely unpredictable, and many have large outbursts at great distance only to diminish in brightness later.
The door of the children's bedroom had been carefully shut and the children were alright... she worked herself into several hysterical outbursts in the course of the evening.