Hey, what is the difference between a painting and a wife?
Only the wife was hung up.
Painting vs. Wife
Explanation
Explain Bear
Listen up, buttercup. This joke's playing on the double meaning of "hung up." Like, a painting is hung on a wall, right? But "hung up" also means someone's got emotional baggage or is, ya know, dead. That's why it's dark, because it implies the wife is deceased.