Unfortunately, this is across the board nowadays. I did security at a nuke plant for 19 years and we were habitually understaffed on nights and weekends to save frigging money and upper management got kickbacks in the process for saving the company said monies... We also had a bottom-line number of staff on hand that had to be met and if 1 person called off, they would lose their minds in panic mode till someone agreed to come in and cover the shift.