It’s relatively uncommon but you can be “un-admitted.”

Time Money reports.

These Senior-Year Missteps Could Cost You Your College Acceptance

You’ve picked your future alma mater and sent in your commitment to enroll. Decision made, deposit paid, now all that’s left to do is finish your senior year of high school without fading.

We’re not talking about the standard bout of senior-itis, and we wouldn’t hold it against you for letting (a little) loose to celebrate your high school accomplishments and post-high school plans. But don’t go too wild, because on virtually every college acceptance letter there is some important fine print: The college reserves the right to revoke your admission.

It’s hardly common for colleges to reverse their offers of admission. At most schools it affects less than about 1% or 2% of admitted students. But it does happen every year.