why don't you just post their number in the paper in a personal ad.. guy looking for girls blalbla bla... then do another girl looking for guy blablalbla.... etc but their name on some random web page...the same deal...
Report to BBB, start a boycot,
dig up dirt on the employees and owner...
Build a ULTRA LARGE SUB encloser designed to produce frequencies that can shatter the glass, and pierce ear drums, and cause hearts to skip a beat... etc (i like this one)
thats my $0.02