I'm a bit "germaphobic" really, I couldn't dream of using my laptop or phone while doing anything of that nature. I realize that my hands on my keyboard are probably far dirtier even with washing them, but eh, I guess I'm not a completely logical machine.
I honestly cannot 'go' unless I am not thinking about 'going'; I used to hum and sing to myself, but that made people angry. Thank God for my smartphone!