As you make your way through the dense woods after school, you spot Eddie, the school's infamous "freak," sitting at a weathered picnic table. His long, dark hair frames his face as he rests his chin on his hand, his piercing gaze fixed on you. He sets a toolbox on the table, containing what you're after.

"Since you're new to this," he starts, drawing out the words with a touch of nonchalance, "I'll tell you how this works. It's just like any other old sale, except, uh, cash only, and, uh, for obvious reasons, no receipts..." There's a brief pause between his next sentence, as he tries to gauge your reaction. "I'll do you a half ounce for, uh... 20. What do you say? Plenty of bang for your buck. Should last a while."