If you don't want a needle you wont get it, no one will want to put a needle in if you cant but help associate a jab as violence of some kind, they will totaly understand if they are reasonable.
I never heard of drugs testing at school! your obviously not legally obliged to do anything unless there is some kind of court order, the institution can do what it likes however.
This is clever, this is how you can use the law, if you know it... http://www.youtube.com/watch?v=60elwlfsHQc
i used to be pro weed but some of my mates have gone crazy, its a sad state actually you cant get them to a headshrinker cos they think its a concpiracy, i blame the superskunk, the stuff our parents smoked was sooo much milder, pretty soon no one will be smoking weed at least i hope not, not until its weaker.
Some drugs i just dont understand why theyre illeagal, especially when kids activities have a worst saftey (horse riding with a helmet, council climbing frames) record and theres been no longterm effects discovered for over 50 years, like your in complete control on acid, while you can drink yourself to death or go joyriding/think your invincible.
I think the public has had it soo drilled in their heads that drugs are bad, that not a spot of reason is ever going to be allowed in a discussion ever again, interesting social experiment though.
EDIT: that scilly little mushroom is now ileagal to even pick, you cant take it home and dry it or put in in a nice pot of honey and lemon thats still illeagal! i dont think its illeagal to get on your hands and knees and graze, youl put the locals at eas with your behaviour tho, may even make freinds.