The Deli Trick

So, Johnny was working at a deli. A woman walks up and asks, "Do you have any salad?" Johnny says, "No." She asks, "What about carrots?" Again, Johnny says, "No." She says, "What about bananas?" Johnny says, "Tell ya what, spell out 'lad' in salad." She spells, "L A D." Johnny replies, "Spell 'rot' in carrot." She spells, "R O T." Johnny says, "Now spell 'fuck' in vegetables or fruits." She says, "There is no 'fuck' in vegetables or fruits." Johnny exclaims, "That's what I've been trying to tell you!"