The Redshirt Effect
The Redshirt Effect can be described as directed bad luck. If a caracter wears a redshirt on a mission, or even during normal day live, it is very obvious that he (most of redshirts are male) will be killed or badly wounded by an accident and/or (random) enemy fire.
In LG it is accepted to use this phenomena as war strategy. When a team is on a away mission the guy in the redshirt can be used to keep the enemy weapons busy while the rest of the team sneaks in.
In LG it seems hereditary. Ensign Redshirt and his cousin, D.B., suffer from the same phenomenum. However, their late ancestor, Redwina Redshirt, was unbreakable (see Legoes?).