Late fees grrr

I have been strict with one parent before, but that's because they had the money but were always just *forgetting it*... and it was a paper voucher too, and the school made a mess up too often with payment! So I had to wait eons before I got the actual payment... they were short term clients thankfully.

I have never charged a late fee, but with one parent I think I might - she is my most ditsy parent and kinda thinks everything revolves around her... she must think I buy food for her child with monopoly money...