In a "please sack me and pay up my contract in full" type of way? Yes, I could believe that.
Exactly. Not like the average bloke on the street asking for the sack. More like, "I've had enough of all the stress, you've probably had enough of me so do you fancy writing me out a six or seven figure cheque and I will get out of your hair. To prove there's no hard feelings I will send you a postcard if there is a postbox on the cruise ship."