I love getting up to some good ‘ol shenanigans! 

Shenanigan(s) is an excellent word. The word alone is so entrenched in the human psyche (though, perhaps, not so much that of current generations) that any number of deeds could be defined as someone up to something—an undefined but accepted by all description—and the awareness as being indicative of a specific someone’s behavior. Shenanigan is a marvelous (excellent) word.