I remember playing a pen-and-paper roleplaying game where you could take negative physical/mental "traits" that would give you more points to spend on your stats during character creation. So, for example, you could take "kleptomaniac" and get 10 more points to spend on stats, but that meant that at some point during the game, a clever GM/DM could fuck you over by putting something you couldn't resist stealing in your path (or making you roll to resist becoming obsessed with stealing it). A very clever GM would ALWAYS pull this shit while your group needed to be stealthy ("As your group sneaks through the castle, you notice a golden statue on a pedestal in another room. A small, sleeping dragon is chained to the pedestal.") Just think! If you took the Beetus Hooves trait, you could get 50 more points to spend on STR and DEX!