She might not seem very crafty, what with her not knowing "thieve" is a verb and all, but she's actually a brilliant mastermind of murder and mayhem and that flowerpot is wired with enough C-4 to blow a big, loud hole in the earth. Same thing with the "LOVE YOU!" at the end. If a thieve [sic] accepts that love proferred in the valediction, he explodes. She's just that good.

Sources: Redditor MeGuStAcHuCkNorRiS