shenanigan

(noun) reckless or malicious behavior that causes discomfort or annoyance in others. Synonyms: mischief, mischief-making, mischievousness, deviltry, devilry, devilment, rascality, roguery, roguishness.

(noun) the use of tricks to deceive someone (usually to extract money from them). Synonyms: trickery, chicanery, chicane, guile, wile.