Pairs of rules

I like Rule 21: "Do not watch your feet while you dance." And how it
goes with Rule 22: "Do not watch your partner's feet while you dance."

Rules 19 & 20: "Do not bump other people on the dance floor."
and "If you do, always apologize."

There are only two rules that I disagree with: "The feet will not leave the ground on the Rock-Step." and "No Single-Steps during slow music."