Charlie Sheen's old porn star pal has a pretty clear message for Charlie's new porn star pals -- watch out for "lamps flying through the air!!!"
Capri -- who was in Charlie's NYC hotel room during his meltdown last year -- was in L.A. yesterday when a photog asked if she thought Sheen needs rehab. Her response: "It might be the best thing for him."
Capri also fired off a bitter-sounding shot at Charlie's Vegas porn companion Bree Olson.
Porn star rivalry, anyone?