I have twice charged chicks for wasting my time.
First 1 I let her to have closure (so like transaction)
Second 1 I charged for every single bulshit message sent to me and charged for my reminder mesage of what she owes (no unnecessary talk) - up to the point she did what I wanted. I started to think Im overinvesting but the lump sum was significant.
I don't feel negative about it, nor do it on regular basis but maybe someone has different view.