do you think, what i think they are?

last night, i watch a movie and find this dialogs.. its funny.. xD
its happen between A and B, when A cant see B, but can hear B voice..

A; are you who i think you are?
B; who you think i am?
A; who you think i think you are?
B; i think, you think, that i think that you think i am?
A; because i would think, think youd think that.....
B; thats enough! its me "B"

(hope you understand)
its funny when they are talking~!