Re: How would you simulate this?
first off, i've failed a 12- DFC roll at most inappropreat moments, it sucks. Also you forget DFC leaves you prone, so you have to spend a 1/2 phase to get up.
Finally, they will fail their dex roll if you add in some "Luck useable as attack: only for failing dex rolls for DFC (-2)"
That one hurts. I love seeing a players eyes wince as his 11 turns into a 14 and he gets beaten on.