There is not a single bed, couch, lab counter, library desk, football end zone, university founder's statue, Henry Moore sculpture or monkey research cage on top of which you, the outstanding class of 2013, haven't copulated.
Holding the tablet or computer too low, especially on your lap if you are sitting on your bed or a couch, can flex your neck forward leading to potential muscle strain.
Some have agreed to no mobile phones in bed or on the couch, while others try to leave the gadgetry in their pockets when they go for brunch or dinner.