I was re-watching Batman V Superman: Dawn of Justice the other day, and I was thinking...
Did Wallace Keefe (the former Wayne employee who was crippled when the building collapsed) know that Lex Luthor had embedded a bomb in his high-tech wheelchair? On first watch, I just figured Wallace knew but then I realized he doesn't really have a reason to know. Lex said he wanted Wallace to "stand for something" but wouldn't Wallace have assumed speaking in front of the Senator was the "stance" Lex wanted him to take? It also seemed like Lex's assistant didn't know the bomb was a plan either.