quirk 
/ˈkwɚk/ noun
plural quirks /ˈkwɚk/ noun [count] 1 : an unusual habit or way of behaving
▪ Everyone has their little quirks. 2 : something strange that happens by chance
▪ Their meeting was a (strange) quirk of fate/nature.
▪ Everyone has their little quirks.
▪ Their meeting was a (strange) quirk of fate/nature.
