Where American football rulings get messy
- Catch or incomplete: control and feet are only part of the test; the player may still need time or an act that completes the catch.
- Pass interference: both players can compete for the ball, so officials look for meaningful restriction rather than ordinary contact.
- Protected-player contact: timing, target area, and method can turn a hard but legal hit into roughing, targeting, or unnecessary roughness.
- Kickoff outcomes: fair-catch and touchback consequences vary by rulebook, especially under college-style and modern NFL kickoff rules.