I have a cell phone...
but not being that popular... I am not compelled to use my phone that often
cell phone behavior has irked me since its inception
people on their phones
talking on their phone often more loudly than they would talk if having a conversation with someone front and center
people on their phones
talking on their phones walking down the street oblivious to anything and everything around them
people on their phones
talking on their phones while driving their cars not focusing on the task at hand driving blind
and
yes... people on their phones
talking on their phones while riding their bikes putting themselves and others at risk