Sorry I could not see what you're saying because you have germ-smog all around you
Do you know the distance from ball sack to anus to bell end? When you fart, do you think that the gas release contains cherry blossom particle or something?
Do you need two hands to undo zip and whip it out. Have you ever got a skid Mark on your ball sack. Wee unless you have an infection is totally sterile and your privates are no more dieseas ridden than your arm pits. So no, it's is totally possible to use a phone one handed and have no more risk of contamination as the top of your head.