Have to laugh. I was in a WalMart in Sulphur Springs, TX a couple of years ago. There wasn't anyone in the fabric section, so I rang the bell. Then someone else came along an they rang the bell. Then I rang the bell again. After about five minutes or more, I (having grown up where you sometimes had to communicate over long distances) turned my face up toward the ceiling and yelled (you could hear me in the parking lot) "Is anybody working the fabric section?" A clerk popped around the counter and said "You could have just rung the bell." My answer "I've run the bell four or five times over the last ten minutes."
Another time I was in a Walmart in another town nearby and again there was nobody in the fabric section. I rang the bell a couple of times and, when nobody came, I took out my cellphone, called the main store number and asked to speak to the manager. When she came on-line, I told her I'd been waiting in the fabric section for a long time and nobody was answering the bell. She had somebody there to wait on me rather quickly.
A word of advice to everyone. DON'T take surly clerks and assistants lying down. Call management. Or, better yet, remind the clerk that there are at least fifteen or more people with good customer service skills who want that job.