culture shock

Noticed some interesting things recently.

Friend A was returning a few coins to friend T.
Friend T: A, stop it!
Friend A: It's ok.
Friend T: Stop it!
Friend A didn't bother to get back, while friend T didn't seem to reject.

Nurse B was chatting with nurse C.
Nurse B: I had an enjoyable weekend!
Nurse C: Oh that's great! Tell me about that.
Their conversation ended here.

It seems, I didn't hear what I heard.