This goal has the following fine print specified by mary:
Goal: 0/day for 3 months
Some of this is unconscious, and I'm not okay with paying for that, so when I'm up against the cap, if I go over but stop IMMEDIATELY upon noticing the behaviour, that's not a legit derailment. That said... I might want to consider having a wider road so that I can treat the bottom of the road as the OH GODS STOP! point and use the width of the road to cushion the unconscious times, making it so that if I derail... yeah, that's totally what I should do...
No fine print, then. Bright lines only. (Leaving that in there so that I'll be reminded of the reasoning)