This particular picture will most likely not cause any harm to those involved; but, it is important for businesses to use correct grammar and punctuation while marketing their product. In this case, there is humor in their lack of punctuation. However, as the saying goes in the analogy "Let's eat Grandpa!" and "Let's eat, Grandpa!" a comma could save a life. The use of correct punctuation and grammar could save the business from problems and/or confusion from their consumers. Which, in turn, keeps the customer happy and returning and interests new customers as well. In my opinion, businesses should be more aware of grammatical errors while creating ads and marketing their products.