16. Peter Kürten
Peter Kürten was a particularly nasty serial killer. Convicted for a series of murders and sexual assaults in the city of Düsseldorf, Kürten was sentenced to death (decapitation by guillotine).
His final meal request of a Wiener schnitzel, fried potatoes, and white wine wasn't all that unusual, but the "Düsseldorf Monster" had the cheek to ask for seconds - and received it!