Charlie Sheen gave career advice to children at an elementary school.

The 'Anger Management' star decided to pay a visit to his daughters Sam, 10, and eight-year-old Lola's school as part of career day, and while the talk was ''funny'' the kids reportedly had ''no clue'' who he was.

A source told ''It was funny and Charlie answered questions from the kids about being a television star. The talk lasted about 10 minutes and then he was gone. The other parents certainly know who he is, but the kids had no clue that Charlie was a major Hollywood actor. Now they know.''

It's thought the troubled actor - who is now engaged to porn star Brett Rossi - displayed amicable behaviour towards his ex-wife Denise Richards, although they didn't speak to one another.

The source added: ''[The couple did not] exchange any words, as she sat on the opposite side of the room.''

Meanwhile, the pair are to become involved in a bitter court battle in the coming weeks, as Charlie is reportedly planning an appearance in a Los Angeles court in a bid to decrease the $55,000 a month he pays to Denise for child support of Sam and Lola.

And the 48-year-old actor is looking to evict his ex-wife from the luxury home he owns and has allowed her to live in with her three children.

An insider added: ''Charlie hasn't spent any time with the girls in several months and thinks it's ridiculous that he continue to pay Denise $55,000 every month.''