Is it dangerous to leave the metal in the outlet?

my daughter yanked my vacuum cord and when i went to pull it out of the wall i realized 1 of metal prongs is stuck in the outlet.. should i be worried if i leave it there??
how do i get it out? thx in advance
Update: its stuck in a outlet that isnt out in the open..its behind my dresser.. im just wondering if a fire or something could start. I need to leave my house and am scared to now..
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