They are NOT easy to think of, especially with so many clashing domains. Not to mention, you have to think of how to word them so they fit into the 500 letters.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)