Oh, that's another thing I forgot: tipping at bars. I suppose if nothing else, this is illustrating how many opportunities for tipping there are out there.
That tipping continuum for coffeeshop makes sense; and also, yeah, those drinks are more complicated than a lot of mixed drinks, so it does make sense to tip them well for it.
And yes, I see people do the lunch thing and it bothers me as well. Also people who will go to a restaurant, get a full meal, and then tip a single dollar bill. WTF PEOPLE. My dad was like that frequently; we'd go to a nice pizza place, get like two large pizzas for him, me and my stepbrother (plus drinks), running about $25-30, and then my dad would tip $2. It drove me INSANE. Once I started making my own money, I'd usually furtively drop another couple of dollars down on the table as we headed out, especially since it was my favorite pizza restaurant ever and I never wanted it to close (unfortunately it did...RIP Torre's on Wornall, you were awesome, and the hole-in-the-wall in Westport which remains, still carrying your name, just doesn't live up to it).
Re: tl;dr answer
That tipping continuum for coffeeshop makes sense; and also, yeah, those drinks are more complicated than a lot of mixed drinks, so it does make sense to tip them well for it.
And yes, I see people do the lunch thing and it bothers me as well. Also people who will go to a restaurant, get a full meal, and then tip a single dollar bill. WTF PEOPLE. My dad was like that frequently; we'd go to a nice pizza place, get like two large pizzas for him, me and my stepbrother (plus drinks), running about $25-30, and then my dad would tip $2. It drove me INSANE. Once I started making my own money, I'd usually furtively drop another couple of dollars down on the table as we headed out, especially since it was my favorite pizza restaurant ever and I never wanted it to close (unfortunately it did...RIP Torre's on Wornall, you were awesome, and the hole-in-the-wall in Westport which remains, still carrying your name, just doesn't live up to it).