Paul Simon would have us believe there are 50 ways to leave your lover, but he only supplies five:

• Just slip out the back, Jack
• Make a new plan, Stan
• Don't need to be coy, Roy, just listen to me
• Hop on the bus, Gus, don't need to discuss much
• Just drop off the key, Lee, and get yourself free

I guess you have to imagine the other 45 ways.

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Thanks, Dannye, for pointing out that the correct title of the song uses the word fifty, not the numeral 50. May seem nitpicky, but important on E2, where it makes two different nodes.