Grocery shopping

An old lady walks into her local grocery store and starts browsing through the produce section. The stock boy notices and approaches her to ask if he can help. The old lady responds, "I'm looking to buy some broccoli." The stock boy responds, "I'm terribly sorry ma'am but we are entirely out of broccoli, can I recommend the spinach? It's quite delicious." The old lady responds, "that sounds great, I'll take a pound of broccoli." The stock boy, confused, says, "I'm sorry, but we're out of broccoli. Maybe some green beans instead?" The lady thinks about it and says, "No thank you, just the broccoli for me." The stock boy is now becoming annoyed and responds, "As I said, we have no broccoli. Please try something else, like the peas." And once again the lady says, "Sounds great, wrap up some broccoli for me." At his whits end, the stock boy asks the lady, "Ma'am, can you spell cat, as in catastrophic?" "Of course I can" replies the lady, "C-A-T." "And can you spell dog, as in dogmatic?" "Of course I can," responds the old lady, "D-O-G." "And can you spell fuck, as in broccoli?" The old lady responds "But there's no fuck in broccoli." The stock boy shouts, "That's exactly what I've been trying to tell you!"