Not a silly question (?) about tea/coffee cups
I've always wondered if it's really possible to drink from square cups. I picture them from the '50s or '60s, made of Melmac, and even with rounded corners they're really quite square. Wouldn't the tea run down both sides of your face? If you drank from a corner it would look very awkward, you'd have to hold the handle at an odd angle, wouldn't you?
You do need to drink from the corner. Sometimes the handle is on the corner but if not, yes, it is held at an angle.
<Wouldn't the tea run down both sides of your face?>
Likely, and certainly one side of your face. The problem of drinking from the "straight" side is the same as pour from a "straight" pot. There is not a clear lowest point, and if there is, then it will be at a corner.
The liquid simply flow to the lowest point away from your mouth.
Japanese have long been using square cups (masu) for sake, especially for celebration.
Drinking from the corner is certainly preferred by many: