Fire me for going on my phone for a few seconds

Is it normal for your manager you threaten to fire you for going on your phone for 5 minutes in total in a 5 hour shift or to listen to music while working even though others in your department are going on there phone for like 10 to 15 minutes.

usa jobs
usa jobs resume
usa hotel jobs
usajobs
usa jobs federal government
usa job in ksa
usa jobs
usa jobs login
usa jobs gov
usajobs.gov
www.usajobs.gov
usajobs.com
usajobs
usajobs.gov official