am nintenho i really don't understand how you've never had coke from a fountain before i mean maybe if you only went to taco bell your entire life but i really doubt it you must have gone to other fast food establishments or restaurants where coke was served it's really everywhere because it seems most places that serve pepsi are owned by pepsico like taco bell, arbys, kfc, etc. so the likelihood is that the majority of places you've eaten at had coke and unless you made a conscious effort not to drink it, the chances seem great to me that you are not telling the truth.
btw, there are people who don't like Dr. Pepper? WTF, this is AMERICA.