When you were a minor how did you get booze?

I'm 22 now but when I was younger I used to get booze sometimes through older friends, and those were great times, lots of laughs. One time I got drunk at a park when I was younger... so what are your stories? Some of my friends said they payed a hobo to get it for them, but I never understood how you could do that without him taking your money and leaving? Did anyone here do that?