> I'm afraid the definition of "discrimination" now includes taking offence where none is intented, implied or given.
If you're as sober as a judge, drinking soft drinks, and are told you can't be served an unopened can because you might use it as a weapon, while right next to you somebody who is drinking alcohol is served an unopened can, then I don't know how else to take that other than discrimination. You are being clearly told you look like a threat, even compared to somebody who is drinking alcohol.