Final answer:
Real estate agents should be cautious of stragglers at the end of an open house due to potential security and safety concerns.
Step-by-step explanation:
Agents should be wary of stragglers who turn up at the end of an open house because they might be there to perform an illegal act. Stragglers are individuals who arrive late, often at the closing time of an event such as an open house, and can raise concerns for real estate agents about the security and safety of the property. Agents are trained to be alert and cautious at all times, particularly in such situations, to prevent any potential criminal activities, such as theft or vandalism. Agents should be wary of stragglers who turn up at the end of an open house because they might be there to perform an illegal act. Stragglers refer to individuals who linger behind after an event, in this case, an open house, and may have ulterior motives.