Those stories are true and it has happened multiple times. The way around it is bid a trip that doesn't touch base for the 3-4 days you will be gone. Or bid a trip that touches your home if you commute and make it effective once you hit the jetway. They want to leave you stranded, leave their jet stranded. Unprofessional and childish to treat guys like that.

I just heard about 2 new hires in sim together where 1 guy quit in the middle of sim cuz he went to class somewhere else and the other guy quit after he got his type since he was soon to start class somewhere else.

Drop to 50 hours, keep the rest of the month free and walk away. The CP's strategy is an embarrassment and unrealistic.

7 week notice??? I'd probably tell him to quit now as well. This is not uncommon in the whole workforce, not just Frontier. My wife worked in HR in a fortune 500 company, and pretty much anyone who gave notice was done the end of that day unless they had some corporate knowledge that needed to be passed down, etc.
Think, as a mgr would you want someone in your workspace who has one foot out the door, spouting off for the next 7 weeks over trips?
Lastly, had a bud who left UAL for DAL last year (after 7mos with UAL) and he was pretty much told the same thing after he called the CP with two week notice.
Abandoning someone from home is a bit harsh, but not expecting them to let you go is a bit unrealistic as well.
JMHO