I've quit a couple of jobs.
I quit at Woolworths (in Australia it's a grocery store, like Safeway) when I was in year 11 (second last year of highschool) because they changed a roster on me and said I'd be fired if I didn't show up, I ended up skipping class and riding my bike home (about 30 min ride at full pelt) then back to school carrying my uniform in one hand (both parents were working) then had to skip another class to shower (was obviously sweaty after an hour of riding at full pelt in what would have been about 27-30C heat (80-86F).
I worked that shift and then gave my notice. I complained that they had changed the roster since my last shift and waited until 12 noon that day to tell me and they simply said that they only needed to give 3 hours notice.
I said that's fine and said I'd finish off my rostered shifts (2 weeks as they did the rosters in advance) and never worked there again. Turns out they couldn't have fired me for turning down the shift as technically they were offering me a shift and as a casual I can say no but whatever.
I "quit" a job in my home town when I moved to the capital of my state. But it was a psudo-transfer within the hotel chain.
I quit a bar tending job because our Manager quit and then about 6 weeks later offered me a job at her new restaurant. I just told the new manager that I'd been offered a job where I would be paid 4 times my current salary (going from full time under 18 rate to casual adult rate will do that).
Unluckily she had a falling out with the owner 3 months later because he micro managed and wouldn't take her advice, and she quit.
Within 5 weeks of her leaving our hours had all dropped to the point where the newest staff members were being laid off. I figured I was safe due to my awesome work ethic etc but I was wrong. I was told that there were no hours for me but that I was still employed, they would understand if I looked for more work elsewhere.
They shut down a month after they told me I had no hours.
I quit Subway when they cut my hours. I had little to no savings left and they had no hours for casuals. I lasted 3 months on my savings and then called dad.
I quit my job at GAME because I needed more time to study.
I recently told my manager at GAME (different store, different manager) that I couldn't work due to needing more time to study and she said no worries I can have hours whenever I'm on holiday.
Almost my entire resume there.
I've had a fuck tonne of jobs. (currently 2)