Thu, 19 Jul 2012 20:24:50 GMT | By Francis Whittaker
Charlie Sheen and other Twitter quitters

Ashton Kutcher

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Ashton Kutcher left the social networking service after tweeting about the sacking of controversial football coach Joe Paterno, who had been embroiled in a sex scandal.

The tweet caused uproar among his followers, and Kutcher passed the handling of his account to his management.

Like so many others before him, Kutcher soon returned to tweeting.