Credit: GSI Media

Warning: Charlie Sheen has access to deadly weapons.

On Monday, after Warner Bros. fired him from Two and a Half Men, the actor, 45, didn't exactly stay in quiet seclusion.

Instead, Sheen (with his live-in "goddess" Natalie Kenly in tow) took a meeting at Live Nation in a Beverly Hills office.

After that business was adjourned, Sheen climbed to the rooftop and greeted fans -- by whipping out a huge machete and waving it around. Next, as the crowd cheered, Sheen pretended to drink from a bottle of "Tiger Blood."

On Monday afternoon, Sheen told he was "fine" with the job loss, although his lawyer later announced plans to sue Warner Bros. and Two and a Half Men creator Chuck Lorre.

Wrote Warner Bros. in a shocking salvo to Sheen's lawyer: "Your client has been engaged in dangerously self-destructive conduct and appears to be very ill."

Sheen also retorted to X17: "Free at last!"