Then there are full-on boob slips.
Mischa Barton, the former star of The OC and anorexic waif extraordinaire, gave us the latter.
And oh, how grateful we are for her efforts.
Fresh off her breakup with Cisco Adler, Mischa was enjoying a night out in London last night, when she returned to her hotel with an unidentified male friend.
Her top came undone (as you can see) as she gave the paparazzi a little peek before she quickly buttoned up. Nice work. Barton's ability to dress herself appropriately appears to be in line with her driving skills.
Hey, there's a lot to be said for consistency.
As far as partially-nude pics of former OC stars go, we'd much prefer pics of Rachel Bilson like this one, as she's 10 times hotter. Of course, she's also 10 times more private and reserved, so you'd never actually see Bilson in this kind of situation.