lucy24 - 9:49 pm on Mar 21, 2013 (gmt 0)
the cashier - who knew what they were - offered one to the AM.
He then waited for him to finish it before telling him what was in it.
I would only be done for possession.
Er, no. You would be "done" for drugging someone without their informed consent. In most jurisdictions that counts as criminal assault. Legality or otherwise of the substance itself isn't even an issue.