"เป็นไปได้มั้ยที่คนคนนั้นจะลืมช็อคโกแลตไว้บนโต๊ะเธอเฉยๆ"

Is it possible that s/he just accidentally-on-purpose forgot a chocolate bar on your table?
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สำนวน ：
* accidentally on purpose = If you do something intentionally, but pretend it was an accident, so do it accidentally on purpose.
Ex: I accidentally-on-purpose erased his e-mail address so I couldn't contact him again.