Had a fun DL RJ experience today. Sitting in F DCA-LGA (no vodka on-board whatsoever for some reason) and right before we go to the runway to take off, LGA closes and we wait about 20 minutes. Then DL cxls our flight (so much for DL cancelling cancellations). We go back to gate and they board everyone on the next shuttle's flight which is delayed.....of course all of us in F have to go to coach and take any seat. Then we taxi out and have to wait another hour and 45 minutes to take off.