Love is backward evol-ution.
Does that get it above 80%? 
But I remember that there was dissatisfaction about an acceptable answer regarding the source of the designation street ell. And no one seemed to come up with the source of the tune of “duh-dih DUH DUH DUH, duh-dih DUH-di duh-di duh”. There appear still to be some weeping souls remaining out there.
Reminds me of the time I was tooling around out on a dirt back road in an eastern part of the Southern California desert, when I came up missing a U-bolt on my tail pipe. A few minutes pass. . . Up comes a pick-up truck. Never was too fond of the typical pick-up driver. . . . But this one hands me the proper size U-bolt and goes on his way. Ya just never know. Maybe U-bolts grow on Joshua trees. I dunno.
Ray (Tangent, you say? How about an arcsecant in Hilbert space?)