I don't even do that crap between sets. Even if I'm going to rest between sets, I'm only going to rest a few minutes. I don't want to get caught up in my phone and and up sitting there for five minutes. I'm an adult, I can handle sitting someplace for 2 minutes and just thinking without needing a freaking phone to play with. Maybe the fats need to look at food on their phones so they don't collapse from not having seen any in more than 10 minutes.