A student who died after he inhaled so much laughing gas he wasn’t even able to walk down the stairs was found to have been in possession of 200 canisters of 'hippie crack' in his room, a court has heard.

http://www.independent.co.uk/student/news/student-who-died-after-taking-too-much-laughing-gas-had-200-canisters-in-his-room-court-hears-10353318.html