The man in question is named Trysdale, and he has just returned home from a wedding, accompanied by his friend, who coincidentally is the brother of the bride. As his friend pours himself a drink and keeps up a steady stream of idle chatter, Trysdale slowly removes his gloves, while his gaze is drawn to a small potted cactus sitting on his table.
At this point, Trysdale once again becomes aware of his friend, who has just noticed the cactus sitting on the table. As he has spent time in South America, he recognizes the variety, and asks Trysdale where he got it. Trysdale evasively says he was given it by a friend, and asks him if he knows what it's called. His friend says sure- here's the name on the tag in Spanish: "Ventomarme", which in English means, "Come and take me"... Oops.