Potty Phone

When did taking one's telephone to the shitter become a thing? I can get on-board with multitasking, but taking a tinkle has always struck me as a rather single-purposed, biological task. I've actually seen someone get up from a table, look around and say, "Where's my phone? I gotta pee." Is that implying that she somehow uses a telephone to uncork her bladder? Or maybe the presence of porcelain improves a cell phone's reception? Does she need an app for peeing? The questionable portion of my speculative mind came up with some really, REALLY picturesque images of what might be going on in there. I even thought about grabbing her phone when she returned and sniffing it, just to see if I could deduce what it may have been used for. Maybe new photos were added while she was tending her business that would give a clue... Actually, upon further reflection, nevermind. Maybe some questions really are better left unasked.