Now I think of it, it sounds... to take this idea and change it a bit, so the outcome you intend is more productive, would be more help.
Instead... to try to have some person reject you each day, the goal in mind can be to have some person acknowledge you in a positive way each day(even if it is just a stranger you say "hello" to returns a greeting). Of course, in attempt to do this, there will also be many instances of rejection, and you can use those to learn accept the rejection. This way, a person can learn to be rejected is a part of life as much as to be accepted is, but the rejection is not so bad because also can be accepted, and it would be good practice to "put yourself out there" no matter if you receive either response.
I think a person would get much more from that, instead seeking rejection alone.
(i hope this made at least some sense)