Wouldn't it be cool if each corp had a little red unlabeled button that they were never told what it does except not to fuck with it? Maybe NLM's switches the brownouts around. PRI's messes with the weather temporarily. VS has one that releases drug dispersal grenades in the busiest Red locale. They could all have limited uses that renew on a cycle like the trading count on corpshare, allowing corpies to mess with Mixers in mostly harmless ways either a lot in a short burst or strategically to make new ones second-guess reality. Maybe there would even be consequences if anyone was found abusing them, but there's ways to distract NPCs long enough to do it once in a blue moon.