I don't want to Fear minions!
Both Fiddle and Nocturne rely on getting their burst on the target and keeping them from getting away with Fear. The combo has to happen pretty fast (especially for Fiddle) to avoid losing kills and it's frustrating to Fear a minion once in a blue moon. I know there's Target Champions Only but I'm also trying to get all their abilities off in addition to Smite, BoRK, Hydra, Ghostblade (sometimes all at once) so it's not exactly easy to press yet another key while doing this.
Moreover, I see no reason why either of them would ever fear a minion in a real game. I can understand that it's useful for jungle monsters and I'd like that kept but it makes no sense for minions. In Fiddle's case, Fear doesn't even do damage so it's not helpful for CSing. Nocturne's E does damage but it's not burst and it's not worth the 60 mana in CSing situations or the vulnerability it leads to.
chomps a minion as a top laner, but it's important for junglers. Such a control scheme would benefit both