"The Ambulance Made Two Trips" by Murray Leinster is a science fiction short story written in the early 1960s. The narrative follows Detective Sergeant Fitzgerald as he navigates the underbelly of crime in a town plagued by the nefarious activities of racketeer Big Jake Connors. The story delves into themes of corruption, ethics in law enforcement, and the extraordinary concepts of psionics and probability manipulation. In the plot, Detective Fitzgerald finds himself embroiled in a situation where violent intentions go awry, thanks to a psi unit utilized by a man named Brink, who seeks to thwart Big Jake's threats against his business. As Fitzgerald investigates odd occurrences surrounding Big Jake's schemes, he discovers that those intending harm find their plans thwarted, leading to mishaps instead of violent outcomes—such as pants catching fire or perpetrators crashing their cars. The story concludes with Fitzgerald and Brink confronting Big Jake and his thugs, highlighting how the unexpected consequences of esoteric forces can alter destiny. The intertwining of crime and speculative sci-fi elements creates a unique narrative exploring the implications of powerlessness against corrupt influences. (This is an automatically generated summary.)