No, it is exactly as i wrote above, the idea isn't to complain back, it is that you get shit for free and you have no standing to demand for anything more than what you got. If free candy makes you sick maybe next time do not accept free candy from strangers, hm?
(of course i knew someone would try to reply with a "No, it is like <insert post ignoring the point here>" but decided to go with it anyway)