I have never quit from a job before, possibly because I was fresh out of Uni and got a job at a government department - that's for life security. The only experience I have of a changing workplace, is being transferred to another division. Even so that involves with some kind of procedure/etiquette.
However, being in the middle management now, I have had experiences with people quitting on the job under my watch. Well, two to be exact, eventhough they were on temporary basis. I don't mean to judge their reasons for quitting, but I just want to share how I feel about being in this kind of situation and how the said employee/s could've done better from just leaving their jobs.
We hate that you quit in the middle of a task before finishing it. Know how hard it is to pick up the pieces and continue from there?
For the employees who are about to quit their job, please give ample notice to the company based on contract be it 1 or 2 months notice, or whatever period it may be. This is because you may have some task that were not completed and the company needs to find a replacement to continue the job or you may need to train the next person who will come in to take your place.
We hate that you have didn't leave a progress report or finish your task
The company may want to have the updates on the progress of your work at that point so it is better to tie the loose ends by finishing the said task or do a proper handing over job by prepraing notes and notifying it to whomever you are reporting to.
We hate people who beg back for their job because when they quit they don't give a f**k what happens to their colleagues and the company
Never ever quit before having a secured job in place. Think long and hard before quitting, or if you can't think properly, take a few days off just to sort things out. It is one thing to quit the current job, but it's another thing to beg for it back, especially when you realised that you have made a mistake and because the other thing didn't work out.
My advice is never ever leave the company high and dry by just quitting without turning up to the office without any reason. It will be long lasting impression that you are a bad employee, and maybe this will stick in your records. The company may not be so generous to give you a second chance.