So now we know what a Charlie Sheen-style PSA would look like.
Afterward, Sheen gave a quickie speech on life lessons to members of the college squad practicing nearby.
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"Stay off the crack, drink chocolate milk, enjoy your moment," he said to laughs, according to video posted on TMZ.com. “That's all I got. Have fun."
A UCLA spokesperson later told gossip site x17 Sheen was “not invited to speak to the team,” but had done so on his way off the field.
The public appearance comes as Sheen is reportedly gearing up to return to the set of his top-rated CBS show, “Two and Half Men.”
"We are thinking Charlie will be going back to work two weeks from today," lawyer Yale Galanter told E! News on Monday.
“Men” has been on hiatus since Sheen began his third stint in rehab in 12 months on Jan. 29, a day after he was hospitalized for abdominal pains.
The hospitalization followed a reported 36-hour bender with porn stars at Sheen's home, the latest example of the actor making headlines in recent months for alleged wild partying.
"I have a lot of work to do to be able to return the support I have received from so many people," Sheen said in a statement last week.