They at the fair when they come across a weapon stand. They then get excited because they can aford them Cartmen points to 2 throwing stars for 2$ and says"look kenny theres some thing even you can aford, but sadley the owner of the shop informs them that to buy them they need there parrents."Parrents oh god oh god whyyyyy cartmen says. The boys make the man feel guilty by telling him that theyre brothers and there parrents died.They then get the weapons- can any one pic up Im not a big typer.