5. Zapping Bruce Banner (The Avengers)
When Tony Stark and Bruce Banner are working on S.H.I.E.L.D's helicarrier, they are discussing the possibility of Banner visiting Stark's beacon of clean energy, Stark Tower, at some point in the future. Banner is declining the idea based on the busy environment of New York City being a sure-fire way to provoke his transformation in to the Hulk. Stark, clearly with an ulterior motive, politely promises Banner a completely stress-free environment upon his visit, before giving him a mild electric shock out of the blue using a mini-Taser. He then looks him straight in the eye and asks "nothing?" Stark clearly wanted to see the Hulk and was disappointed that he couldn't instigate the transformation. Wreckless, but funny.