9 Smartest Video Game Decisions (That Still Got People Killed)

6. Poisoning Batman - Batman: Arkham City

By the beginning of Batman: Arkham City, The Joker is infected with the fatal Titan Disease, and desperate to save his own skin, makes an undeniably smart decision to ensure his own survival: infecting Batman with the disease and waiting for him to get a cure for them both.

After all, who better to save your life than Gotham's indefatigable crime-fighting superhero who prides himself on never allowing even his worst enemy to die?

And The Joker's plan very nearly pays off, as at the end of the game Batman does indeed come up with two doses of the cure for himself and The Joker.

But after the Caped Crusader cures himself and ponders the morality of letting the Clown Prince of Crime live, an antsy Joker can't resist attacking him any longer, causing Batman to drop The Joker's vial on the floor and sending his cure quite literally down the drain.

Quite aptly, The Joker hatched a brilliant plan to ensure his own survival, but also couldn't bear the thought of teaming up with Batman for another second, and so by attacking him more or less got himself killed. That The Joker died a deeply ironic death is only too apt.