Scott Summers is generally someone who likes to think of himself as a good guy, which makes his wrongdoings all the more interesting, because it means that all of his worst deeds are still things that he can find some way to justify. While you'd expect that this means Cyclops hasn't committed many wrongful acts, it's almost the complete opposite, as the hero is somehow capable of convincing himself that having a telepathic affair - or even killing his oldest friend - is totally fine.
With focus generally being put on how 'boring' Scott is, the fact that he continually excuses his own terrible actions often goes overlooked. There are many things you can say about a man who takes his child to fight monsters, but none of them involve calling him boring.
It almost seems as though this perception of Cyclops being dull has been made in order to ignore all the 'interesting' things he has done, because nearly all of them involve him being fairly awful.
But this is a cheap cop-out, as Scott is arguably at his most interesting when he's more morally questionable. While he can't be straight-up evil and still lead the X-Men, there's no harm in letting the guy have the questionable history that past writers have supplied him with...
10. Almost Killing A Ton Of Children
Within the pages of the collective X-Men comics, there are just enough occasions where Cyclops narrowly evades killing children to raise some very serious red flags somewhere in the back of your mind.
A prime example of this lies in X-Factor #35, which saw the hero team throw hands in a child-filled cryogenic chamber against a bunch of villains with reflective armour - something that Cyclops warms against, as he fires an energy beam at an enemy that then begins to bounce around the room.
In doing so, he narrowly misses zapping several of the children, in a move that could have resulted in some mass-murdered frozen kids.
The fact that Cyclops simultaneously recognises the danger of fighting in said room, and then immediately endangers all the children in there by doing so anyway, is as ironic as it is kind of a terrible move morally.