Thomas Dekker Gets His Drink On

Dekker was caught on tape doing a deranged dance with a water pipe!

Dekker's loopy performance was shot at an Albuquerque, N.M., party during filming of the Terminator pilot last year, according to Mike Mooney, a 23-year-old guest who videotaped the bizarre incident.

In the 2-and-a-half minute video, an intoxicated Dekker can be seen rolling around on the floor, staggeringly under