Happy Little Accident is literally based on a happy little accident. Me and horseman was experimenting with a part of the breadboard where we had prototyped Fruits and accidentally created this bizarre little fuzz. It is a very irrational pedal that can vary greatly based on your input. Atleast in my experiments.
Then a second accident actually occured a while later when I was testing some built units. My finger slid over the back of the PCB while I was playing and it made some new sounds it hadn't done before. So naturally I drilled a big hole in the enclosure over that part of the PCB so you could stick a finger in it.