TP-ing the girls' dorm and bombarding them with water balloons.
During the filming of Season 1, Episode 5 ("The One with the East German Laundry Detergent"), director David Schwimmer famously pranked Jennifer Aniston by throwing a dummy down the stairs. "Zoey 101" Prank Week (TV Episode 2005) - IMDb [S1E5] Prank Week
“Prank Week, a PCA tradition where old PCA students prank new ones, has begun... the girls carry out a plan that ends up threatening whether or not girls are allowed at PCA.” Zoey 101 Wiki TP-ing the girls' dorm and bombarding them with
To save her fellow female students from mass expulsion, Zoey takes sole responsibility for the prank. She agrees to accept an immediate expulsion and issue a public apology to the entire school. the girls carry out a plan that ends
Dressing the statue of PCA’s founder, Clarence G. Bradford, in women's clothing and makeup.