“Here’s what I’d like you to do,” he would instruct each person. “Find as many adjacent Ss as possible and circle them. If you finish all the letter pairs in one sheet, move on to the next one. Once the five minutes are up, I will come back, collect the sheets, and pay you the five dollars. Do you have any questions?” Five minutes later, Daniel would return to the table, collect the sheets, and hand the participants a small stack of $1 bills, along with a prewritten receipt that read:
