the concept of adrenaline junkie qifrey
not because he enjoys the danger but rather because it literally helps him stay alive, imagine if before he got the idea to become a teacher and have kids to constantly worry about, he'd consistently and consciously put himself in dangerous and terrifying situations to force his mind into a perpetual state of anxiety
facing wild animals, almost drowning himself, getting too close to a cliff's edge, flying up high and dropping down only to catch himself before he hits the ground etc
only with olruggio staying close to him it would prove to be highly inconvenient, his friend would again and again notice that something is wrong with qifrey, that he maybe hurts himself from time to time
and he'd get concerned, and he'd offer his help and qifrey, doomed, cursed and helpless, would wipe his memory and do everything all over again
he couldn't keep on hurting his best friend like that, even if and especially if he's unaware about that, so he came up with a better source of worry
