I snapped these pics at a rest area on the way to Mui Ne in January.
A silhouette of a gangster-type guy in a fedora seems to be the universal symbol for "man" on restrooms in Vietnam. Sometimes he's puffing a smoke in a manly way, sometimes not. It always gives me a chuckle.
The symbol for "woman" has a little more variation. Here she's wearing a floppy hat. It's little things like this that keep life perpetually interesting in Vietnam.