If you don't grind, don't expect my sympathy

I was working last Saturday morning and received a phone call.  It was an employee from another store.  She wanted to know if I could work for her the next night.  I apologized and informed her that I was already scheduled at my job.  The young lady went on to say "I haven't had an off day in 2 weeks."  Haven't had an off day in 2 weeks?  Bitch, please!  I haven't had an off day in months.  But I'm focused on my grind.  Damn a day off.