I believe a gun is bound to malfunction at some point, no matter what kind it is... there is a reason we train. We train to clear malfunctions quickly.. and effectively.. not just train to fire the weapon.
I do not carry a bug... I carry a knife... which is my last ditch line of defense short of running away.. which generally would be my first choice if its there for the taking.
I also don't believe in carrying a recently cleaned gun. I will practice with my carry gun.. break it down.. clean it... shoot about 5 more magazines through it to insure proper function after being taken apart and handled... then it will be good to carry.