@ChrisMayLA6 I worked in A/E (or ED if that's your bag), and trust me, no one, and I really mean *No One* will be volunteering for any time over and above the 12 hour shifts that they already work. (UK, other countries may be different)
The pressure, the grind, the abuse - (but also the feeling of accomplishment when things did go right for nice but very frightened people) turned every shift into a physical and emotional roller-coast ride.
Or maybe I have just got too used to retirement :)