As the "Level Design 101" page on the SRB2 Wiki recommends, I am adding the Flag Return property to the damage-dealing sectors in my level. The problem is that whenever I add this property, the sector starts dealing damage to anyone who so much as enters it! I just want them to be hurt when they touch the floor. How do I make it so that the sector deals damage only when a player touches the floor, but any flag inside it will automatically return?