 All of the following motivate Prantera to accept the proposal from Brett-James and Reston-Ferrell EXCEPT:
A gun is an interesting weapon; it can be hired, of course, and naturally doesn't care who hires it. The evening was dark, it was unlikely that the other even saw the circle of steel that was the mouth of the shotgun barrel, now resting on the car's window ledge. And at that moment, the universe caved inward upon Joseph Marie Prantera. The other spoke precisely and slowly, the way a highly educated man speaks a language which he reads and writes fluently but has little occasion to practice vocally. Lawrence Reston-Farrell said, "You are not being constrained. It opened on his approach, the door sliding back into the wall in much the same manner as the room's door had opened for Reston-Farrell. Reston-Farrell said, "I am afraid, Mr. Salviati-Prantera, that these are the only garments available. Reston-Farrell said compassionately, "Try this, it's excellent cognac." Reston-Farrell had approached the door by which he had entered and it reopened for him. Reston-Farrell, the one Joe had already met, was tall and drawn of face and with a chainsmoker's nervousness. Reston-Farrell said, "May I present my colleague, Citizen Warren Brett-James? Brett-James nodded to him, friendly, so far as Joe could see. Reston-Farrell said, "Of course," and then something else Joe didn't get. Whatever the something else was, a slot opened in the middle of the table and a glass, so clear of texture as to be all but invisible, was elevated. Warren Brett-James said soothingly, "Prepare yourself for somewhat of a shock, Mr. Prantera. Brett-James said gently, "Hardly for one hundred and seventy years, Mr. Prantera." Reston-Farrell said, "I am afraid we are confusing you. "Not exactly," Brett-James said, frowning. Reston-Farrell said, "Suffice to say, you are now one hundred and seventy-three years after the last memory you have." Reston-Farrell said, "Mr. Prantera, we have brought you from your era to perform a task for us." For the second time, Reston-Farrell said, "Where would you go, Mr. Prantera?" "Yes," Brett-James said, his voice soft. The two men of the future said nothing more for long minutes while Joe Prantera's mind whirled its confusion. "That is why we brought you here, Mr. Prantera.
 He does not need to worry about Temple-Tracy's followers seeking revenge
 He does not need to worry about Temple-Tracy's followers seeking revenge  He does not have to fear being arrested by the police  He is unlikely to encounter someone with weapons during the job  He does not have a chance of being sent back to 1960