Quote Originally Posted by leo9 View Post
Your hero could, for instance, deflect Oswald's gun only to have JFK shot from the grassy knoll (thus explaining some of the inconsistencies in the official story),
I only just caught up with the Red Dwarf episode where they do exactly that - accidentally distract Oswald through some clumsy time travelling, and have to go back and shoot JFK from the grassy knoll to put history right.