I've buried things in plastic bags UNDER my tent before now.
Just under the corner. Worked, too.
( Captain Wow currently being a cunt in Infamous, Tue 16 Jun 2009, 9:47, archived)

I've only once had a problem
when someone robbed all the stuff from my freinds tent while she was asleep in it, which was a bit cunty.

Mostly I've found having a massive group in a tent circle and making sure the inside of each tent looks like a bomb site is the ticket. 99% of the thieving wankers want to be in and out in a second with a full rucksack and sort it later. they aren't going to fish through my worn pants hoping for a 'teenth of rubbish resin.
( the mighty badger Aphrodite, on a bar stool, by your side, Tue 16 Jun 2009, 9:52, archived)

Exactly
I've only ever had stuff nicked from outside my tent before, and even then that was only the one solitary flip flop I'd managed to make it back there with.
( Captain Wow currently being a cunt in Infamous, Tue 16 Jun 2009, 9:54, archived)