Has anyone received a paper rebate check my moms friend is a mail lady?

and she said she has seen a few envelopes from the IRS in the mail...i am wondering if the people who were suppose to get direct deposits but couldnt be cause of the HR block and turbo tax thing are getting their paper checks...you would think if they went to deposit it and it got rejected they would just print the check and mail it instead of having to go back to that person later...hmmmm so i guess the question is has anyone recived a PAPER check?!!?