Somewhat, depends on the situation. If I need to go, and I get... "shocked" so to speak... (scared, sudden movement, fall, sneeze, etc) I will... void a little. As well as urinary.
However this didn't come about until then end of regaining 97% of my urinary contince. (Ive fallen back to about 89% due to getting sick for 4 damn weeks) I guess it may have something to do with me doing that. like I still cant sperate functions again, they go hand in hand... for now.
I too have both bladder and bowel incontinence, but mine was due to nerve damage from degenerative disc disease and the 3 surgeries I've had for it. It came on slowly after the second surgery when my lower 3 discs were fused together. It started with night time wetting, progressed to daytime as well, then it began to effect my bowels as well. The third surgery fused me from the third rib from the bottom of my ribcage (T10) all the way to the bottom of my spine at S1. When my symptoms didn't improve after that one, the doc told me I'll probably never regain control.
So I've been wearing diapers for just over 5 years now. So if you want to be bowel incontinent, just ruin your back! (please don't take that seriously!) I wouldn't wish this on anyone.
To tie this into another thread about laxatives I just read, let me say this. I'm on a high dose of morphine for the rest of my life because of the constant pain, but it also causes constipation, (yes, you can be constipated and still not have control), and my docs prescribed 2 different laxatives to keep me regular, (well, as regular as you can be anyway), so I never know when I'm going to have an accident now.