To promote ans sell company products by regularly holding Cooking Shows
Businesses that like to hide part of their revenue from the Tax Man (IRS). If you pay by debit/credit card or cheque every thing is tracable. Taking payments in cash also helps keep banking costs down. Hence it is mostly small businesses that give cash discounts to encourage you to pay them in cash enabling them to control costs and avoid small amounts of tax. Additionally, gas stations are notorious for offering cash discounts.
My community college canceled two computer classes I'd registered for. They returned my fees EXCEPT $10.40 that I assumed was a service charge. I was so mad I emailed the Colorado State Advisor & said this was unreasonable, since I wanted the classes but the college had canceled them before they began. She forwarded my complaint to another college VIP & I promptly got my money back, plus a soothing apology! I still can't believe these people spent their time seeing that my complaint was satisfied -- most rewarding!
You should start out of conversation by asking about their day. You can also talk about how long they have been with the company.