Well, whenever I go to fast food places or restaurants, I tend to buy some sort of combo meal that comes with a drink. Well, I do enjoy the taste of fountain drinks (unlike my Dad who hates fountain drinks), but there's one thing that ruins the taste of them. I absolutely hate it when they put WAY too much ice in my drink. I don't care if its hot outside, I just hate it when they put too much ice. I hate having too much ice because it gives me very little soda/pop to drink, so I end up getting thirsty quick. I also have to drink my soda/pop quite fast or the ice will melt. IMO, the taste of ice cubes melted and sofa/pop (especially with Pepsi) tastes nasty. I normally end up throwing my drink away after that. I probably should order a drink with no ice when I'm out, but I start to think they'll think I'm weird if I request it. That's why I tend to love fast food places where I can make my own drink (where I put in very little ice and tons of soda/pop). At restaurants, the more ice I'm given, the more refills I tend to order. Now I don't mind ice melted with water much, but I just don't like it with soda/pop.
While I'm on the subject of liquids, I hate it when Burger King or wherever I order the drink at is out of the sweetener or whatever that goes into fountain drinks. A few times I ordered a drink and it tasted like beer. Normally I just ask to order something else, but that hasn't happened to me for many years.
I also hate it when soda/pop taste flat. When I've opened a can of Pepsi or bottle of Ginger Ale/Pepsi/Sprite/etc., when I don't hear/see any fizz, I can pretty much assume the drink is going to taste like crap. Sometimes I throw it out, sometimes I drink with lots of caution and barely finish it. One reason I hate drinking 2 liter bottles or putting a can of soda/pop back in the refrigerator is because it will go flat after a short time due to being opened already. So I just stick to cans and small bottles, so I don't have any issues.
Also, while some might not have paid too close attention, I feel the very last bit of soda/pop in a can/bottle tends to not taste too well. Kind of has a flat taste, so sometimes I don't take that final sip to completely clean the can/bottle. I don't know if anyone noticed, but I have.
I also just can't drink stuff warm, but like it a little cold. That's why I keep my stuff in the refrigerator. Personally, I don't believe in using ice with soda/pop that comes from a can/2 liter bottle (can't really say why). I just feel it should be drank as is. But if I were to have a drink of alcohol, then I'd rather pour some into a cup/glass mixed with something.
Eh, not much for me to say here, but I just really hate it when ice melts in my drink and alters the taste. I'll admit it somewhat hurt the Captain & Coke I had mixed together almost 2 weeks ago (when out with friends). Anyone else hate it when there's too much ice in your drink? And does anyone else notice the taste of flat soda/pop.