For any former military...
Last night - get off work at about 2100. Get a call at 2200 saying we have formation in the morning at 0630, so be there by 0545. Roger.
Get there, wait half hour. Form it up, Company Gunny gets up in front of us and says "Have a nice day!" Go home and got some sleep before my late shift started at 1300.
Ahhh, the things the Corps does to mess with ya....