A 78 year old man shopping at a Costco in California became annoyed when he saw a 24 year old man taking multiple free Nutella waffle samples from a stand in the store. The elderly man told the greedy shopper he should really only take one. After the scolding, the young man responded by punching his elderly foe in the face. The 78 year old was hospitalized with lacerations above his eye and facial swelling.
What is the etiquette when it comes to freebies?