I used to work with a man who frequently used one hand to look at emails on his cell phone while standing at the latrine, and used his other hand to urinate. Are you able to disconnect from your device long enough to use the bathroom?
Yes, I don't even get separation anxiety. The funny part is other people's reactions. They can get irritated if you don't respond in two seconds.
That phone needs to be sanitized!!
I've done this, but rarely.
I use an entirely different body part to urinate. :-P