Błędnie: I was really horrified when the acquisitor, who was trying to talk me into buying a set of kitchen knives, got angry. Poprawnie: I was really horrified when the canvasser, who was trying to talk me into buying a set of kitchen knives, got angry.
"Akwizytor" to 'canvasser' lub 'travelling salesman'. 'Acquisitor' to "nabywca".