It seems to me most of the owners of bars here on the island are either retired and have money coming from a pension or someplace, or they are involved in many business ventures on the island. Teaching english is a good option but remember that involves an early daytime hour and the bar will keep you there until at least 2:00am if you want to be sucessfull, so how do you fit in shagging as well
I have thought about teaching as well but my restaurant keeps me very busy most of the day.
Cheers!