Poisonous Food?

A man with salt and pepper hair and a five o' clock shadow stepped into view. "Go on. Eat it." He insisted. I put the strawberry back on the table with its brothers and sisters. "Was something wrong with it?" The man asks in a suddenly concerned tone. "Perhaps." I respond, coyly. "Well, don't let one bad one stop you. I'm sure there are plenty of other good ones." "I don't think we'll be eating the strawberries. Or any of the other desserts for that matter." I say. "And why is that?" "Because you poisoned them." Olivia blurts . The man leans in. "Excuse me?" "You heard her." I say. "Yes, I think it's an absurd accusation." "Is it?" Olivia asks. "We have no idea who you are and we have no reason to trust you yet." The man sighs. "Fine. I'll have one as well." The man walks over to the table. He takes the biggest chocolate covered strawberry he can find. He then takes a huge bite and swallows. He looks over to Olivia. "There,nothing happened." "Yet." Olivia adds. "And nothing will." He assures. "Maybe you're right, but I prefer to wait a while." She says starring into his eyes. The man nods slowly. "If that's what you wish then we will wait."