Your dice had some fluctuation during the first attempt. Obviously they tried for 17, 10, 17, 10, 17, 10.
Last game I had some pretty hot (not really odd, tho

) dice, when casting
empowered ray of enfeeblement on an opposing minotaur character, who threatened to kill us all (together with his three buddies, but he really posed the highest threat, since most of use had only few hps left, after a couple of
lightning bolts and whatnot).
Attack: 20 13 (confirmed critical) 6 5 (for a total of 25 !!! Str penalty).
Needless to say, he was out of the fight!

With a miserable Str of 1 he couldn't even hold his weapon anymore.
Bye
Thanee