– Do you know what I got for my birthday from my wife?
– A coffee maker?
– Nope. Three line segments that measured 1, a, and b.
– How thoughtful of her. I guess you didn’t have them already.
– You are right. It made me extremely happy.
– How long did the happiness last?
– Till the next morning.
– What happened then?
– She asked me to make a line segment which measured a times b.
– I would have preferred the coffee maker.
Problem source: Pandalous.