All penalties that would be called prior to the game are Unsportsmanlike penalties(even if it is not taunting) by the rule-book. In Football, these are usually garnered by intentionally crossing into the opposing teams side during pregame warm-ups repeatedly. If the home fans run out with the team and bump into the opposing team or officials(seen this happen a few times) it can also cause a penalty. In High School basketball, if a player dunks during the last 20 minutes of warm up before a game it is a technical foul.