LOL! That sounds familiar James. I did exactly the same thing with a North Face Starburst years ago. Came out the Kingshouse bar years ago, walked over to my tent in the dark, and crouched down for the zip. I proceeded to pitch forward into the tent, destroying a pole in the process. The broken pole ripped the fly-sheet as well. I was too 'tired' to care, but woke up in the morning with a hangover and a wrecked tent! Happy days! :D