If you only had $5 for beer..

[ckmlb]

I'd buy 1 bottle of beer, drink it then break it then use it to threaten someone in a dark alley to give me all their money and then use that to buy a lot more beer.

Make sure you find someone weaker than you to do this to. Also wear glasses in case they have pepper spray or something.

But do not, under any circumstances try to rob the actual liquor store with only a broken beer bottle.