Ashley Benson
has bad timing.

On Wednesday, the "Spring Breakers" star posted a picture on Instagram of her impersonating Amanda Bynes. While Benson's pose is pretty spot on ... her timing is not so great.

The 23-year-old wrote, "Doing my Amanda bynes [SIC] look this afternoon," along with the photo.

On Tuesday, TMZ reported that Amanda was taken into custody on a 5150 hold for setting a small fire on a residents driveway in Thousand Oaks, California. When police arrived to the scene, it was determined that Bynes needed to be hospitalized.

In the last year, Amanda's showed signs of instability -- from calling fellow stars "ugly" over Twitter, to threatening to sue various media outlets, to numerous admissions of plastic surgery, and even a hip-hop career in the works -- her actions have led the public, the media and now her parents (who are seeking a temporary conservatorship) to worry about Bynes' mental health and general well-being.

After some backlash from fans, Ashley tweeted "To clear up the whole Instagram thing, I had no idea what her situation was. Truly sorry if I offended anyone."

What do you think about Benson's photo? Vote below and click "Launch Gallery" above to see some of Amanda's latest TwitPics.

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