Nasty Customer

Last week, a customer comes into the restaurant where I work at CC's Fish Camp part time and from the moment I greeted him he had a bad attitude.  Asked him politely what he wanted to have to drink, he replied " I'll have a Miller Lite draft beer ".   I said " ok"  and proceeded to get his beer.  When I came back to the table and finished taking his order which was a skirt steak entree well done, bake potato and a salad.  Meanwhile a party of two was sat in my section and  I  greeted them.  They knew what they wanted and ready to order their drinks and food all at the same time.  They ordered sandwiches and fries.   I put the single guy order in first and then the couples order in next.   Seven minutes later the couples order was ready and I served them their meal.  The single guy noticed and walked up to me and asked me in a nasty tone "why didn't I get my order first".  I  replied "your entree was not ready yet, because your steak needed more time to cook".   Some people are so impatient.