I had a customer send a check to me post dated for the end of the month with a note saying please don't cash this until that date. I'm not really sure how to feel about this. On one hand it's bs that she would pull something like this, and it's like having a sandwhich you can't eat for 2 weeks. The other hand, it's not like I'm hurting for the $$ and at least she sent me the check. Any thoughts? Should I be mad, offended, etc?