"So you can read my mind then?" or "What am I thinking now?" Probably the most common of misconceptions, just because I study psychology does not and never will mean that I can read minds, I don't think anyone (apart from Edward Cullen) can read minds, no degree on earth will ever be able to teach someone that!
"Can I have a friends/family discount on therapy?" no, seeing as I don't want to go into therapy, only a small percentage of people will go into it. Even if I did go into therapy I wouldn't want to
"Are you psychoanalysing me now?" No! I don't tend to psychoanalyse people, I do like to have time off from thinking about psychology so if I'm talking to you, it will probably mean I'm thinking about anything but what degree I'm studying.
"Is that not a girl's subject?" Now I know that I'm a girl but I can imagine that many of the guys that are reading psychology get annoyed with this question. It is predominately a female course but there are more and more guys doing psychology and in this day and age no subject should be a girls or boys subject!
"Is that what people do when they don't know what they want to do with their life?" This one is true for me, I don't have a clue what I want to do with my life and by doing a psychology degree it means that I can go into a range of jobs therefore keeping my options open. However, I do think that asking this question is quite rude, everyone chose a degree subject for a reason and that reason is fine by me, no matter what it is!