An impeccant is akin to a gremlin, but is also a shape-shifter. Their favorite thing to do is to imitate a sock in a laundry basket, then slither out of the washing machine after you turn away, leaving you in perpetual wonderment as to where the missing sock went. Their second-favorite activity is to eel themselves into your car wherever you've parked it, turn the volume knob way up, then depart. Being shape-shifters gives them the ability to do these things impeccably: they are never caught, thus their name.

accidie