I had dinner at Manpuku a few nights ago (really good, but overpriced), and ordered a glass of cold sake. The waitress served it in one of those dark grey ceramic cups w/ no handles on a little matching saucer, but she poured the sake all the way up to the brim of the cup and then let it flow over to the saucer. She did this for my friend as well. The sake was really really good, so instead of letting the sake in the saucer go to waste, I dumped it into my cup when I thought no one who worked there was looking.
Can anyone tell me if what I did was tacky in Japanese culture?