<p>My online searches haven’t turned up anything, though I imagine such a error one cause quite a bit of notoriety. </p>
<p>I imagine proudly going to the top program of my choice, only to be told at the doorsteps that my acceptance has occurred in error before being wished away by campus security without so much as a reimbursement for my plane ticket.</p>
<p>Once in a while there’s a story about undergrad programs doing this, but they usually catch it a few days after acceptances go out.</p>
<p>For PhD programs you’ll generally get flown out (on their dime) to interview at the school, so any mistake should be caught at that time.</p>
<p>Never heard of it. This is called imposter syndrome. For the first 6 months of my grad program I was terrified that they had mixed up my resume with someone else’s and that I had been accidentally accepted, but that they would soon discover my fraud and release me. Every grad student feels like that at first.</p>