What if you literally couldn't produce your signature smile on cue with confidence anymore? People with Parkinson's Disease can sometimes be deprived of executing this seemingly simple action of showing appreciation because of ongoing oral and dental health problems which are symptomatic of the debilitating condition.
And the fact is, we live in a world where our newspapers are constantly taken over by drama; our free time is (mainly) spent watching famous-sorts bicker and tell stories in the jungle/on a judging panel/at the High Court - we can't help it. We're drawn to the tawdry details; the naughty bits that should be kept secret; the bare, naked details. As humans, we seem to be programmed that way.