While there is some debate over who should take the first hit, “Many folks subscribe to the idea that the roller should always hit the joint first, but that the person packing a bowl should hand it to someone else to start,” Post explains in her book. The idea is that the roller knows how they rolled the joint and can light it properly, but for smoking bowls, the ritual “stems more from a spirit of taking care of your friends,” she writes. But the good news is, this is more of a common practice than a hard-and-fast rule. If you happen to slip up, it’s unlikely that anyone will notice.