such a great question... is it like asking if I only had a little sex am I still a virgin?
or is it more complicated? I don't know...
ok my 2 cents... and who am I anyways?
I would say a little sip isn't a slip. For me it has always been once I start to feel it the race is on... so one tiny sip wouldn't cause me to become unpredictable. However! HOWEVER! I know one sip could lead to two and well how many licks to the center of a tootsie pop?
And on that note I am not sure one sip wouldn't cause me to loose control. I look at it like this... if you put one bullet in the gun and spin the barrel and pull the trigger and you don't shoot yourself in the head it doesn't mean it won't happen the next time you pull the trigger.
You decide for yourself don't let me tell you what to do but I would say no way for me... it aint worth it... No way I am testing that theory.