ive had to leave shops numberous times, and none of them went too well. one shop threatened with a non-compete i never signed or saw, another cut the ties totally and took over my room during the two weeks, another ignored me for the two weeks, the two week thing never worked. last shop i left i told them, it wasnt working and gave them the option "i can leave today or in two weeks", i packed up the car and left.
i think its the weird and fragile ego in tattooing...i dont know. ive remained friends with one...and that was only after a year or so had past. weird! business is business and we all have families, bills, or whatever.