Don't mean to be a stickler here, but....if we're talking etiquette, it's not a "tiny" soy latte. I believe appropriate etiquette dictates that it is either "8 oz." or "short". Appropriate ordering etiquette involves using the providing companies predetermined size lingo.For me, if I'm running into these scenarios, I'm not fishing in the right spots. If I wanted to worry about proper etiquette, I'd head to Portland and ask They/Them for a soy latte in a tiny cup and hold my pinky out just right.
For example: "Hi, I'd like a short caramel crunch frappuccino with heavy cream, seven pumps of dark caramel sauce, double frapp chips, five pumps of frappuccino roasted coffee, extra salted butter, extra ice and a pump of the honey blend, please". They'd totally get that. But if you used the word "tiny" instead of "short".....you're going to get crickets. I know this because I asked for a "small" drip coffee at a starbucks recently and the barista looked at me like I had ordered the worlds most complicated drink....despite the person before me ordering something very similar to afore mentioned caramel drink.