When you go in for a job interview, they may ask you why would you not go back to your old employer. You should be honest in answering the question.
No way of telling - each employer can be different - they can go back as far as they want.
Harassment? If your employer if asking when you can go back to work, that's not really harassment. If your employer wants to see proof that you are out due to medical reasons, that's not harassment.
Back to your 18th birthday.
No. Even when you go on your new employer's policy you will be covered execpt for the old injury.
As far as they wish, excludindg your juvenile record, of course.
In Canada you have the right to go to the former employer and ask to see your employee file and they have to accommodate the ex employee. However, what is in your file and what the former employer says behind your back are two different things. I always get a Letter of Recommendation from former employers because it covers your back. If they say anything else they would look like a complete fool because you have it in writing with your Letter of Recommendation. Employers don't have to give you a Letter of Recommendation, but give it a go. Every bit helps.
It depends on how important it is to that particular employer. You should pretty much always assume they will find out everything. Most employers are going to be more upset to dig up something far in your past than they would be if you told them about it up front.
You cannot go back to the old version.
go back to the past backwords not forward
If this is your employer, you can speak with your manager or HR and request that the policy be changed back. If they refuse, you can live with it or find another job. If this is a business that you use, you can request that management change the policy back, or go to a competitor.
It is not possible to go back to the old Yahoo mail.
Yes. If it's a company car and is insured through your employer, the employer's insurance company would pay out the claim. The accident would still show up on your record though.