The cave entrance has been trip-wired to 2 sticks of dynamite. There is a 50% chance that the character will notice the trip-wire. Add a 1% bonus for each 10 points of speed the character has when determining this roll. The dynamite is 10″ away, thus resolve the hit as 25/60/- (chance of death/chance of wound/stun).
Mentats of Gaming presents: Trap-a-Day 