Salespeople are sports addicts

Working closely with the salespeople I learned something: in order to sell you need not an MBA but an MBG: Master in Ball Games. Their telephone conversations always start with: “Did you watch the game yesterday”. And they have to sound enthusiastic and knowledgeable on the subject otherwise no sale, no commission. Which is quite curious, imagine you aren’t a football fan, will you then be a bad salesman? Do salespeople keep records of which team their contacts support?