今年春晚小品《扶不扶》引发热议：本是学雷锋做好事，结果竟变成一件须“谨慎”的事。今天是学雷锋日，你校就“你会不会扶老人”进行了一次调查。

Percent %	What will they do	Why
70	Give a hand.	A good deed(好事); in need; the old should be cared for
20	Don’t know.
10	Do not help.	A lesson from Peng Yu Incident

请根据上述调查结果以及自己的观点完成下列短文，词数不限。
An old man fell down on the ground and couldn’t get up. What would you do if you were there? We have asked all the students this question in our school. Here are the results.
70%of the students say they will help the old man. They think the old man is really in need and he is supposed to be    . Besides, it’s  and should be advocated（提倡）. But 20% of the students don’t know    . And the rest of the students say they will not help the old man. They say they    from the Peng Yu Incident. They are afraid of being blackmailed（讹诈). I think        .