A father bought his depressed son a new house, and then pointing at it, he said, "Hang in there, son!"
Hang In There, Son - A Father's Dark Encouragement
Explanation
Explain Bear
Listen up, genius. You see, the dad tells his depressed son to "hang in there." That phrase is usually a supportive thing to say, but in this case, the father bought his son a house (presumably with a noose) so it is dark humor. Get it? I bet you don't.